Note that issue has been reported by CodeQL static analysis system

Following raylib design, a warning log message is shown and program can continue execution.
Some early return checks have been added on most  critical functions.
[rtext] Previous implementation checking `isGpuReady` cross-module variable is not needed any more, resulting in a more decoupled code, load failure is managed at rlgl level

- REVIEWED: Checking `NULL` input on functions getting `const char *text`, to avoid crashes
- REVIEWED: `strcpy()` usage, prioritize `strncpy()` with limited copy to buffer size
- REPLACED: `strlen()` by `TextLength()` on [rtext] module
- REVIEWED: Replaced some early returns (but keeping others, for easier code following)

Specifically "occured" -> "occurred"

* Get C++ compilers working

* Fix Formatting

// File management functions
 - int FileRename(const char *fileName, const char *fileRename); // Rename file (if exists)
 - iint FileRemove(const char *fileName);                         // Remove file (if exists)
 - iint FileCopy(const char *srcPath, const char *dstPath);       // Copy file from one path to another, dstPath created if it doesn't exist
 - iint FileMove(const char *srcPath, const char *dstPath);       // Move file from one directory to another, dstPath created if it doesn't exist
 - int FileTextReplace(const char *fileName, const char *search, const char *replacement); // Replace text in an existing file
 - iint FileTextFindIndex(const char *fileName, const char *search); // Find text in existing file

// Text management functions
 - const char *TextRemoveSpaces(const char *text);                                       // Remove text spaces, concat words
 - char *GetTextBetween(const char *text, const char *begin, const char *end);           // Get text between two strings
 - char *TextReplace(const char *text, const char *search, const char *replacement);     // Replace text string (WARNING: memory must be freed!)
 - char *TextReplaceBetween(const char *text, const char *begin, const char *end, const char *replacement); // Replace text between two specific strings (WARNING: memory must be freed!)

This reverts commit 4e8d08523f.

* add const qualifier to the first arg of TextJoin

* Update raylib_api.* by CI

* Update raylib.h

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Ray <raysan5@gmail.com>

This redesign is a big improvement on font loading time and memory requirements. It only loads glyphs available on font from requested codepoints and only processes those glyphs for packaging. When processing +10K codepoints (CJK), the loading time improves considerably.