Add system-specific boot symbols and CPU instruction tests

Introduced symbol files for various Game Boy systems (CGB, AGB, MGB, SGB) to define boot sequences and functionalities. Included CPU instruction behavior tests, with detailed coverage of standard operations and interrupt handling. Added documentation for test execution and internal framework operations.

boot/dmg.sym

@@ -0,0 +1,42 @@
+; File generated by rgblink
+BOOT:0000 EntryPoint
+BOOT:0007 EntryPoint.clearVRAM
+BOOT:0027 EntryPoint.decompressLogo
+BOOT:0039 EntryPoint.copyRTile
+BOOT:0048 EntryPoint.writeTilemapRow
+BOOT:004a EntryPoint.writeTilemapByte
+BOOT:0055 ScrollLogo
+BOOT:0060 ScrollLogo.loop
+BOOT:0062 ScrollLogo.delayFrames
+BOOT:0064 ScrollLogo.waitVBlank
+BOOT:0080 ScrollLogo.playSound
+BOOT:0086 ScrollLogo.dontPlaySound
+BOOT:0095 DecompressFirstNibble
+BOOT:0096 DecompressSecondNibble
+BOOT:0098 DecompressSecondNibble.loop
+BOOT:00a8 Logo
+BOOT:00d8 RTile
+BOOT:00e0 CheckLogo
+BOOT:00e6 CheckLogo.compare
+BOOT:00e9 CheckLogo.logoFailure
+BOOT:00f4 CheckLogo.computeChecksum
+BOOT:00fa CheckLogo.checksumFailure
+BOOT:0104 HeaderLogo
+BOOT:0134 HeaderTitle
+BOOT:013f HeaderMenufacturer
+BOOT:0143 HeaderCGBCompat
+BOOT:0144 HeaderNewLicensee
+BOOT:0146 HeaderSGBFlag
+BOOT:0147 HeaderCartType
+BOOT:0148 HeaderROMSize
+BOOT:0149 HeaderRAMSize
+BOOT:014a HeaderRegionCode
+BOOT:014b HeaderOldLicensee
+BOOT:014c HeaderROMVersion
+BOOT:014d HeaderChecksum
+BOOT:014e HeaderGlobalChecksum
+00:8000 vBlankTile
+00:8010 vLogoTiles
+00:8190 vRTile
+00:9800 vMainTilemap
+00:fffe hStackBottom