Analyze and reorganize header and source files #107

Job	Run time
Performance Regression Check	1m 30s
Code Quality Checks	1m 2s
Build & Test (gcc-13, Debug)	1m 14s
Build & Test (gcc-13, Release)	45s
Sanitizer Tests (ASAN + UBSAN)	24s
Build & Test (clang-15, Release)	29s
Build & Test (clang-15, Debug)	40s
Build Summary	4s
	6m 8s

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