src/CMakeLists.txt: warn if swig is less than 3.0.5
src/CMakeLists.txt: warn if swig is less than 3.0.5

The SWIG js module cannot build on SWIG 2.x, it also now requires macros
defined in SWIG 3.0.4 and above but there are python issues in everything
3.0.2-3.0.4 so we force a requirement on 3.0.5 and above

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

timrtoo/Intel,alexandru-elisei/mraa,g-vidal/mraa,pctj101/mraa,petreeftime/mraa,malikabhi05/mraa,malikabhi05/mraa,neuberfran/mraa,timrtoo/Intel,alex1818/mraa,KurtE/mraa,timrtoo/Intel,damcclos/mraa,petreeftime/mraa,sergev/mraa,w4ilun/mraa,ProfFan/mraa,seem-sky/mraa,STANAPO/mraa,Propanu/mraa,noahchense/mraa,g-vidal/mraa,Hbrinj/mraa,stefan-andritoiu/mraa,sergev/mraa,sergev/mraa,stefan-andritoiu/mraa,matt-auld/mraa,ncrastanaren/mraa,alext-mkrs/mraa,timrtoo/Intel,mircea/mraa,Meirtz/mraa,ncrastanaren/mraa,spitfire88/mraa,petreeftime/mraa,STANAPO/mraa,zBMNForks/mraa,alexandru-elisei/mraa,spitfire88/mraa,Propanu/mraa,yoyojacky/mraa,Hbrinj/mraa,alexandru-elisei/mraa,arunlee77/mraa,timrtoo/Intel,noahchense/mraa,smileboywtu/mraa,pctj101/mraa,stefan-andritoiu/mraa-gpio-chardev,intel-iot-devkit/mraa,noahchense/mraa,alext-mkrs/mraa,nioinnovation/mraa,spitfire88/mraa,Jon-ICS/mraa,Meirtz/mraa,sundw2014/mraa,neuberfran/mraa,alex1818/mraa,seem-sky/mraa,ncrastanaren/mraa,seem-sky/mraa,alexandru-elisei/mraa,alext-mkrs/mraa,neuberfran/mraa,tripzero/mraa,tripzero/mraa,Hbrinj/mraa,jontrulson/mraa,yongli3/mraa,SyrianSpock/mraa,ProfFan/mraa,sundw2014/mraa,whbruce/mraa,Pillar1989/mraa,yoyojacky/mraa,jontrulson/mraa,sundw2014/mraa,anonymouse64/mraa,petreeftime/mraa,Propanu/mraa,jontrulson/mraa,whbruce/mraa,neuberfran/mraa,stefan-andritoiu/mraa-gpio-chardev,SyrianSpock/mraa,andreivasiliu2211/mraa,stefan-andritoiu/mraa,arfoll/mraa,arfoll/mraa,g-vidal/mraa,ncrastanaren/mraa,KurtE/mraa,Kiritoalex/mraa,intel-iot-devkit/mraa,smileboywtu/mraa,g-vidal/mraa,Kiritoalex/mraa,stefan-andritoiu/mraa,jontrulson/mraa,pctj101/mraa,stefan-andritoiu/mraa-gpio-chardev,zBMNForks/mraa,w4ilun/mraa,SyrianSpock/mraa,sergev/mraa,Jon-ICS/mraa,malikabhi05/mraa,Pillar1989/mraa,yongli3/mraa,mircea/mraa,sundw2014/mraa,seem-sky/mraa,stefan-andritoiu/mraa,neuroidss/mraa,g-vidal/mraa,yongli3/mraa,alext-mkrs/mraa,tripzero/mraa,Propanu/mraa,w4ilun/mraa,sundw2014/mraa,alexandru-elisei/mraa,sergev/mraa,allela-roy/mraa,andreivasiliu2211/mraa,Propanu/mraa,STANAPO/mraa,damcclos/mraa,andreivasiliu2211/mraa,intel-iot-devkit/mraa,ProfFan/mraa,andreivasiliu2211/mraa,noahchense/mraa,yongli3/mraa,w4ilun/mraa,Jon-ICS/mraa,KurtE/mraa,smileboywtu/mraa,arfoll/mraa,arunlee77/mraa,Meirtz/mraa,matt-auld/mraa,ncrastanaren/mraa,neuberfran/mraa,yongli3/mraa,ProfFan/mraa,arunlee77/mraa,seem-sky/mraa,intel-iot-devkit/mraa,neuroidss/mraa,stefan-andritoiu/mraa-gpio-chardev,neuroidss/mraa,alex1818/mraa,anonymouse64/mraa,matt-auld/mraa,alext-mkrs/mraa,mircea/mraa,nioinnovation/mraa,stefan-andritoiu/mraa-gpio-chardev,allela-roy/mraa,jontrulson/mraa,Pillar1989/mraa,Hbrinj/mraa,damcclos/mraa,allela-roy/mraa,whbruce/mraa,spitfire88/mraa,KurtE/mraa,Kiritoalex/mraa,malikabhi05/mraa,yoyojacky/mraa,malikabhi05/mraa,intel-iot-devkit/mraa,KurtE/mraa,whbruce/mraa,nioinnovation/mraa,arfoll/mraa,anonymouse64/mraa,arfoll/mraa,noahchense/mraa,pctj101/mraa,arunlee77/mraa,pctj101/mraa,zBMNForks/mraa