Add size and offset to immediate and memory operand structs (#489) #926

Job	Run time
Amalgamated build (Ubuntu 22.04)	8s
CMake build + tests (macOS-latest )	25s
fuzzing (address)	11m 38s
MSBuild build (windows-2022)	1m 49s
fuzzing (undefined)	11m 12s
CMake build + tests (macOS-latest -DZYAN_NO_LIBC=ON)	22s
fuzzing (memory)	7m 34s
CMake build + tests (windows-2022 )	1m 14s
CMake build + tests (windows-2022 -DZYAN_NO_LIBC=ON)	1m 0s
CMake build + tests (ubuntu-22.04 )	9s
CMake build + tests (ubuntu-22.04 -DZYAN_NO_LIBC=ON)	9s
CMake build + tests (ubuntu-22.04 -DZYDIS_MINIMAL_MODE=ON -DZYDIS_FEATURE_ENCODER=OFF)	15s
CMake build + tests (windows-2022 -TClangCL)	2m 10s
	38m 5s

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