Needed updates to generated project template

[ ] Add a shared background class to primary template
[ ] Add a shared background classshared foreground to primary template
[ ] override to change game title
[ ] override to change app title
[ ] configuration with post-init callback
[ ] In shared background class, add swap_to_* methods for each of the different background states
[ ] config with before-screen-change callback with call to foreground/background changes
[ ] remember to assign foreground/background to primary gameplay screen
[ ] create a pause screen in config
[ ] add exit callback to pause secreen
[ ] create a subscreen in config
[ ] add exit callback to subscreen
[ ] Add settings screen to title screen
[ ] Add ProjectMakefile in generated project
[ ] Add tests/TestRunnerWithFocusedTestPreflightCheckOrAll.cpp, likely as a symlink
[ ] Add tmp/.keep, needed for builds
[x] Have include/AllegroFlare/.keep and src/AllegroFlare/.keep OR ensure directory is created during programs/macos_release_builder - Done in https://github.com/MarkOates/blast/commit/65f7798e8c0530eeefe04a9291e0319c0cc8ba18

MarkOates / blast