Define `APP_ABI` variable in `Application.mk` for arch targeting #14

Job	Run time
documentation	27s
Flake8 tests	23s
Build test APP [ macos-latest \| webview ]	20m 42s
Build test APP [ macos-13 \| sdl2 ]	1h 1m 58s
Build test APP [ ubuntu-latest \| qt ]	9m 7s
Build test APP [ macos-13 \| webview ]	30m 59s
Build test APP [ ubuntu-latest \| sdl2 ]	36m 8s
Build test APP [ ubuntu-latest \| service_library ]	13m 1s
Build test APP [ ubuntu-latest \| webview ]	19m 51s
Pytest [Python 3.10 \| ubuntu-latest]	2m 45s
Pytest [Python 3.8 \| ubuntu-latest]	2m 33s
Pytest [Python 3.8 \| macOs-latest]	1m 58s
Build test APP [ macos-latest \| sdl2 ]	32m 27s
Pytest [Python 3.11 \| ubuntu-latest]	2m 32s
Test updated recipes for arch armeabi-v7a [ ubuntu-latest ]	4m 38s
Pytest [Python 3.9 \| macOs-latest]	3m 2s
Pytest [Python 3.10 \| macOs-latest]	4m 5s
Test updated recipes for arch arm64-v8a [ ubuntu-latest ]	4m 34s
Test updated recipes for arch arm64-v8a [ macos-13 ]	2m 56s
Test updated recipes for arch x86 [ ubuntu-latest ]	4m 18s
Pytest [Python 3.9 \| ubuntu-latest]	2m 41s
Test updated recipes for arch x86_64 [ macos-13 ]	2m 58s
Pytest [Python 3.11 \| macOs-latest]	1m 58s
Test updated recipes for arch armeabi-v7a [ macos-latest ]	2m 24s
Test updated recipes for arch armeabi-v7a [ macos-13 ]	3m 13s
Test updated recipes for arch x86 [ macos-13 ]	4m 40s
Test updated recipes for arch x86_64 [ ubuntu-latest ]	4m 25s
Test updated recipes for arch x86_64 [ macos-latest ]	1m 49s
Test updated recipes for arch arm64-v8a [ macos-latest ]	2m 6s
Test updated recipes for arch x86 [ macos-latest ]	2m 1s
coveralls_finish	10s
	4h 46m 49s

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