Add firstline match for Makefile
Add firstline match for Makefile

Some makefiles don't have a file extension and are not named "*Makefile*" but have a shebang that can be used to identify it as a makefile. Example: `debian/rules` in all Debian packages.
0xmohit/vscode,mjbvz/vscode,DustinCampbell/vscode,microlv/vscode,cra0zy/VSCode,mjbvz/vscode,the-ress/vscode,stringham/vscode,hoovercj/vscode,Microsoft/vscode,mjbvz/vscode,eamodio/vscode,DustinCampbell/vscode,cleidigh/vscode,hoovercj/vscode,landonepps/vscode,the-ress/vscode,Zalastax/vscode,DustinCampbell/vscode,joaomoreno/vscode,Krzysztof-Cieslak/vscode,the-ress/vscode,microsoft/vscode,DustinCampbell/vscode,microlv/vscode,eamodio/vscode,mjbvz/vscode,stringham/vscode,joaomoreno/vscode,eamodio/vscode,Microsoft/vscode,hoovercj/vscode,mjbvz/vscode,rishii7/vscode,Krzysztof-Cieslak/vscode,hoovercj/vscode,stringham/vscode,the-ress/vscode,joaomoreno/vscode,Zalastax/vscode,microsoft/vscode,landonepps/vscode,DustinCampbell/vscode,joaomoreno/vscode,stringham/vscode,hoovercj/vscode,0xmohit/vscode,the-ress/vscode,mjbvz/vscode,DustinCampbell/vscode,microlv/vscode,cleidigh/vscode,Microsoft/vscode,veeramarni/vscode,rishii7/vscode,microsoft/vscode,microlv/vscode,Microsoft/vscode,0xmohit/vscode,mjbvz/vscode,stringham/vscode,veeramarni/vscode,Zalastax/vscode,veeramarni/vscode,microlv/vscode,DustinCampbell/vscode,microlv/vscode,cleidigh/vscode,veeramarni/vscode,stringham/vscode,landonepps/vscode,Zalastax/vscode,Zalastax/vscode,Microsoft/vscode,hoovercj/vscode,the-ress/vscode,stringham/vscode,landonepps/vscode,joaomoreno/vscode,veeramarni/vscode,hoovercj/vscode,rishii7/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,microlv/vscode,landonepps/vscode,Microsoft/vscode,microlv/vscode,eamodio/vscode,microsoft/vscode,microlv/vscode,the-ress/vscode,eamodio/vscode,microsoft/vscode,rishii7/vscode,Krzysztof-Cieslak/vscode,cleidigh/vscode,Microsoft/vscode,DustinCampbell/vscode,Zalastax/vscode,microlv/vscode,cleidigh/vscode,0xmohit/vscode,veeramarni/vscode,Krzysztof-Cieslak/vscode,Zalastax/vscode,the-ress/vscode,rishii7/vscode,Krzysztof-Cieslak/vscode,veeramarni/vscode,eamodio/vscode,veeramarni/vscode,DustinCampbell/vscode,joaomoreno/vscode,0xmohit/vscode,cleidigh/vscode,Zalastax/vscode,landonepps/vscode,hoovercj/vscode,Zalastax/vscode,joaomoreno/vscode,stringham/vscode,DustinCampbell/vscode,hoovercj/vscode,landonepps/vscode,hoovercj/vscode,the-ress/vscode,joaomoreno/vscode,eamodio/vscode,joaomoreno/vscode,the-ress/vscode,microlv/vscode,cleidigh/vscode,cleidigh/vscode,microsoft/vscode,DustinCampbell/vscode,veeramarni/vscode,Microsoft/vscode,microsoft/vscode,cleidigh/vscode,rishii7/vscode,landonepps/vscode,mjbvz/vscode,the-ress/vscode,mjbvz/vscode,microlv/vscode,microlv/vscode,Krzysztof-Cieslak/vscode,Zalastax/vscode,the-ress/vscode,cleidigh/vscode,stringham/vscode,0xmohit/vscode,Zalastax/vscode,joaomoreno/vscode,cleidigh/vscode,veeramarni/vscode,eamodio/vscode,eamodio/vscode,stringham/vscode,microsoft/vscode,Zalastax/vscode,DustinCampbell/vscode,mjbvz/vscode,0xmohit/vscode,landonepps/vscode,cleidigh/vscode,joaomoreno/vscode,landonepps/vscode,Microsoft/vscode,mjbvz/vscode,joaomoreno/vscode,DustinCampbell/vscode,microsoft/vscode,Krzysztof-Cieslak/vscode,landonepps/vscode,mjbvz/vscode,cleidigh/vscode,0xmohit/vscode,0xmohit/vscode,Krzysztof-Cieslak/vscode,rishii7/vscode,0xmohit/vscode,veeramarni/vscode,microsoft/vscode,microsoft/vscode,hoovercj/vscode,microsoft/vscode,joaomoreno/vscode,the-ress/vscode,eamodio/vscode,joaomoreno/vscode,rishii7/vscode,mjbvz/vscode,Zalastax/vscode,eamodio/vscode,Zalastax/vscode,eamodio/vscode,Microsoft/vscode,the-ress/vscode,landonepps/vscode,DustinCampbell/vscode,eamodio/vscode,eamodio/vscode,microsoft/vscode,stringham/vscode,hoovercj/vscode,joaomoreno/vscode,rishii7/vscode,0xmohit/vscode,cleidigh/vscode,rishii7/vscode,joaomoreno/vscode,hoovercj/vscode,0xmohit/vscode,stringham/vscode,cleidigh/vscode,stringham/vscode,Krzysztof-Cieslak/vscode,veeramarni/vscode,the-ress/vscode,Krzysztof-Cieslak/vscode,Microsoft/vscode,veeramarni/vscode,DustinCampbell/vscode,cleidigh/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode,mjbvz/vscode,Krzysztof-Cieslak/vscode,eamodio/vscode,Krzysztof-Cieslak/vscode,microsoft/vscode,landonepps/vscode,veeramarni/vscode,landonepps/vscode,0xmohit/vscode,0xmohit/vscode,Microsoft/vscode,Zalastax/vscode,mjbvz/vscode,DustinCampbell/vscode,Microsoft/vscode,stringham/vscode,landonepps/vscode,rishii7/vscode,Zalastax/vscode,hoovercj/vscode,mjbvz/vscode,landonepps/vscode,microsoft/vscode,veeramarni/vscode,stringham/vscode,rishii7/vscode,DustinCampbell/vscode,microsoft/vscode,rishii7/vscode,landonepps/vscode,0xmohit/vscode,rishii7/vscode,stringham/vscode,Krzysztof-Cieslak/vscode,cleidigh/vscode,eamodio/vscode,microlv/vscode,microlv/vscode,joaomoreno/vscode,microsoft/vscode,rishii7/vscode,microlv/vscode,0xmohit/vscode,eamodio/vscode,the-ress/vscode,microlv/vscode,hoovercj/vscode,rishii7/vscode,mjbvz/vscode,hoovercj/vscode,veeramarni/vscode,hoovercj/vscode,Krzysztof-Cieslak/vscode,rishii7/vscode,Zalastax/vscode,Microsoft/vscode,veeramarni/vscode,0xmohit/vscode,stringham/vscode,Microsoft/vscode,Krzysztof-Cieslak/vscode