* Calculate exact image size in GenImageFontAtlas
Calculate exact image size with a method based on total glyph width and glyph row count
Current method seemed a little bit overkill with square root, log and power functions and only approximates image size which can be wonky with some weird fonts like cursive fonts.
Proposed method calculates image size directly with a simpler method and results exact image size needed.
* Update rtext.c
* Update rtext.c
Changed do-while to while loop, and also added an extra step to calculate maximum glyph width and excluding it from image width for extra safety.
The `qoaplay_open()` function expects a `char *`, but we are passing in a `const char *`. While this works just fine, it does issue a compiler warning when strict:
```
src/raudio.c: In function ‘LoadMusicStream’:
src/raudio.c:1290:45: warning: passing argument 1 of ‘qoaplay_open’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
1290 | qoaplay_desc *ctxQoa = qoaplay_open(fileName);
| ^~~~~~~~
In file included from src/raudio.c:233:
src/external/qoaplay.c:86:34: note: expected ‘char *’ but argument is of type ‘const char *’
86 | qoaplay_desc *qoaplay_open(char *path)
| ~~~~~~^~~~
```
This change casts the argument to a `char *` to fix the warning.
I'm the only maintainer and have been working hard recently to get my library to be as nice to use as possible. I found out about this language list, and getting a new language on it didn't seem so bad. A bonus for my efforts.
