Support granular management policies

[lsviben]

Add support for granular management policies described based on the design.

There is already an PR for crossplane-runtime, upjet and crossplane-tools.

This will be a breaking change of the ObserveOnly/management policies alpha feature as the
old:
spec.managmentPolicy: FullControl/ObserveOnly/OrphanOnDelete
is getting replaced by:
spec.managementPoliceis:["*", "Observe", "Create", "Update", "LateInitialize", "Delete"].

After applying the updated provider, the spec.managementPolicy field will be removed automatically, and the spec.managementPolicies: ["*"] will be defaulted. This is equivalent to FullControl but for resources using ObserveOnly and OrphanOnDelete the behavior could change.