* #4627 - When looking for template files also look in the libraries subfolder of the supplied templateFolder, before checking the embedded locations.
* Reworked the order in which template files are searched for:
- 1st the code will check if there's a <template folder>/libraries/<library> folder containing the file
- 2nd it will check for the file in the specified <template folder> folder
- 3rd it will check if there's an <embedded template>/libraries/<library> folder containing the file
- 4th and last it will assume the file is in <embedded template> folder.
Added unit test to test template dir overloading.
21657f80cf