Using new install instruction operation

Requires v0.15.0 and above of the Entity Compiler. In this version the install instruction was changed such that it installs templates with the .eml extension. The original idea was for the installed file to have its native extension so it could be viewed in that way but the template code was interfering too much so it was not practical. It was decided that it was more important to be able to view the template code natively. The only change required for existing projects is to simply add a .eml extension the files being installed. For example, SomeSourceFile.java becomes SomeSourceFile.java.eml. The install instruction will name the resulting file SomeSourceFile.java as it did before.