Updates `mc` reference docs for several releases of the MinIO Client.
- Adds missing flags to `mc admin trace`
- Updates `disk` -> `drive` throughout the docs, but not in all cases.
- Adds `--airgap flag` to `mc support profile` and `mc support perf`
commands.
- Updates the flags for `mc ilm add` command
- Adds `mc license unregister` command.
Closes#571Closes#614Closes#627Closes#633
This commit also generally cleans up the Installation docs and uses /includes/<platform>/steps-*.rst as a pattern for storing platform-specific tutorials within a single root URL.
Finally, due to API rate limits, this commit adds some Makefile magic to allow skipping of sync'ing dependencies. Pass `make BUILD_DEPENDENCIES=FALSE <platform>` to skip building any deps and use what is already in the branch.
