hardware-cosmo#601 swadm compliance subcommand (#48)

* Add compliance subcommand

Adds "swadm compliance links <action> <pattern>" command, for more
user-friendly manipulation of links (listing, enabling and disabling).

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: make pattern optional, default to all

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: use up/down instead of on/off

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: improve help/error text

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: move to using enums and improve help/error text

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: make clippy happy

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add on/off aliases

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: update help text

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: make cargo fmt happy

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add setup subcommand

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: simplify filter logic, default to qsfp only

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: fix typo in comment

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add teardown cmd, kr flag, make fec an Option

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add pattern to setup/teardown cmds

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add power handling, rename links to ports

Renames "links" to "ports" since the power handling is done per port.
"swadm compliance ports" now has a power subcommand which puts a port
into manual management mode (optionally deleting all links for a port)
and sets the transceiver power high/low/off.

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: fix clap parser crash

```
BRM42220023-switch # swadm compliance ports power --help

thread 'main' panicked at /home/trey/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/clap-2.34.0/src/app/parser.rs:636:21:
Found positional argument which is not required with a lower index than a required positional argument: "pattern" index 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Abort (core dumped)
```

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: add power column to ls

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: tweak output of ls

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: make clippy happy again

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

* compliance: small cleanup

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

---------

Signed-off-by: Trey Aspelund <trey@oxidecomputer.com>

Author: taspelund