Add analyze command

[vsoch]

• I think should be considered an extension (or possibly developer type?)
• the user should be able to select same package options
• the group (by default) should write to an analyze output folder in package metadata (.spack)
• optionally, the user can send results to a monitor (and the argument group, since it's the same, should be shared between analyze and install).
• We should provide analyzers in an analyze/analyzers folder (e.g., abi or even more general, libabigail).

[vsoch]

More notes for implementation:

• we can get function for iterating in binary_dependencies
• write metadata about build in .spack directory (environment)
• spack analyze should have same arguments as spack install init disambiguate spec
• write files into .spack/analyze/abi

[vsoch]

This is all done!