Specify adaptations by path instead of a directory search pattern

[flxo]

The way bake searches for adapts is a little bit awkward: Passing something like --adapt debug makes bake search for a directory called debug that contains a file named Adapt.meta.

A more convenient way would be pass the path to a adaption file instead of a directory search pattern. e.g:

bake --adapt build/debug_flags.bake --adapt build/toolchain-arm-linux-gnueabihf.bake

This would allow to

1. use custom and descriptive names for the adaptations files instead of Adapt.meta (!)
2. allow the handling of multiple adaptations files with the same name in one project tree (useful for multiple targets: bake --adapt build/$(TARGET)/toolchain.adapt
3. make clear what happens instead of using some bake internal search magic.
4. allow multiple adaption files in one directory

[aschaal]

Agreed. I will change that. If ABC in "--adapt ABC" is a valid file (relative to working dir or main dir) I will use it directly, otherwise I will fall back to current solution (ABC/Adapt.meta).

[aschaal]

Fixed with release 2.45.0.