[BAT] Accessor to ParameterSet
[bat-project] Rename CreateProject to bat-project, and install it along with bat-config
[tools] Merge Dan's refactoring of bat-project

o split templates into separate files => bat-project much shorter
o install templates in data directory
o two templates: a plain version (new), and one with lots of actions that can confuse a new user [default]
[build] Fix installation instructions for CPATH, add instructions after install succeeds