map, prog: allow access to bpfMapInfo, bpfProgInfo

[whl739]

Currently after i load a map/prog from LoadPinnedMap() / LoadPinnedProgram(), i can use Map.ABI() / Program.ABI() to get informations of the map/prog, Map.ABI's informations are enough for me, but Program.ABI has only ProgramType, why not just use bpfMapInfo/bpfProgInfo as an atrribute of Map/Program, and add an API to get it?

[lmb]

Which parts of the structs do you want to access? Maybe it makes sense to add them to ProgramABI.

[whl739]

Currently, bpfMapInfo's id/mapName and bpfProgInfo's id/tag/loadTime/mapIds/name are useful for me.
In fact, i want to get the informations of maps and progs as more as possible in my own program.

[lmb]

This is now available in v0.3.0.