jw-build doesn't stop at building software, packaging it afterwards
is also a core feature, so this commit gives the package a better
name.
The commit replaces strings s/jw-build/jw-pkg/ in text files and file
names. Fallout to the functionality is fixed, variable names are left
as they are, though. To be adjusted by later commits.
Signed-off-by: Jan Lindemann <jan@janware.com>
For every cmd_xxx() method in build.App, create a class that's
instatiated for running the respective command. This has the
advantage of making App.py smaller (and faster), and having smaller,
more maintainable command modules adhering to a common interface.
Signed-off-by: Jan Lindemann <jan@janware.com>
