main: sort command listings

main: skip display of commands without descriptions

main: improve line-wrapping of option parsing lines

main: fix another copy-n-paste mistake from earlier refactoring

main: add --json flag to request output in JSON

main: fix copy-n-paste-o

types: add a CephBool type

Add the CephBool type. Tests and such still TODO.

testing: add very primitive testing for cli to test "suite"

makefile: add cli options needed to run fuse mount in container

main: add osd subcommand

main: add --destination option to mon and use it to pick mon command target

main: use common function for getting destination option

runner: support sending mon commands by target

Sending mon commands by target works slightly differently than
the generic api but our interface works basically the same.

runner: add OsdRunner type

main: add 'mgr' subcommand for cmd query & use of ceph mgrs

runner: add MgrRunner to query/run on mgrs

go.mod: update to go-ceph v0.4.0

update to go-ceph version 0.3.0

desc: add tests to cover descriptions functions

desc: alias CephPoolName to CephString w/o validation