Added base for extending templates, by identifying more extensions
Added base for extending templates, by identifying more extensions

mde/ejs,mmis1000/ejs-promise,jtsay362/solveforall-ejs2,zensh/ejs,kolonse/ejs,insidewarehouse/ejs,insidewarehouse/ejs,zensh/ejs,cnwhy/ejs,operatino/ejs,TimothyGu/ejs-tj,tyduptyler13/ejs,cnwhy/ejs,kolonse/ejs,TimothyGu/ejs-tj,rpaterson/ejs,xanxiver/ejs