Rename map:: get_global->get_abs, bub_from_abs->get_bub, omt_from_abs->get_omt #103831

Job	Run time
matrix-variables	1s
skip-duplicates-code	5s
skip-duplicates-data	7s
Basic Build and Test (Clang 10, Ubuntu, Curses)	1h 9m 36s
Clang 14, macOS 12, Tiles, Sound, x64 and arm64 Universal Binary	1h 27m 11s
GCC 9, Curses, LTO	56m 50s
Clang 12, Ubuntu, Tiles, ASan	1h 37m 34s
GCC 11, Ubuntu, Curses, ASan	2h 26m 13s
GCC 9, Ubuntu, Tiles, Sound, CMake	42m 48s
emscripten / Build	1h 53m 36s
	10h 14m 1s

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