Add support for most uncompressed formats

[Trimatix]

Notes for reviewer:

• Add RawCodec
• Fix R and B channels being swapped for non-ETC1 formats

[sonarcloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[Trimatix]

closes #7 and #8

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
src/AEPi
codec.py	37	3	92%	22, 40, 119
constants.py	72	7	90%	36–42, 62, 68
exceptions.py	40	11	72%	18–19, 28–29, 39–40, 47, 54, 61, 68–69
src/AEPi/codecs
EtcPakCodec.py	29	14	52%	11–12, 22–30, 35–41
RawCodec.py	13	2	85%	15, 20
Tex2ImgCodec.py	19	3	84%	10–11, 27
__init__.py	8	2	75%	11–12
src/AEPi/image
AEI.py	243	28	88%	121, 181, 185, 198, 225, 288, 294–297, 302, 307, 326, 333, 341–342, 347–351, 382, 396–397, 436–437, 444–445, 488–489
texture.py	19	2	89%	29, 49
src/AEPi/lib
binaryio.py	24	1	96%	64
imageOps.py	9	2	78%	13–14
src/tests/image
test_AEI.py	199	1	99%	29
TOTAL	834	76	91%

Tests	Skipped	Failures	Errors	Time
43	0 💤	0 ❌	0 🔥	0.305s ⏱️