Support for maven files

[relhajj]

LibComp should support maven files similar to how it supports grade.

[snadi]

Hi @relhajj It seems that when the library is the last library in the tag and gets replaced, the closing tag disappears as well. See

(1) Have dependency as last one:

(2) Choose to replace testng with junit

(3) it will result in the following, removing the closing dependencies tag: