This change adds the rich library as a dependency, and creates the

basic framework for rich output. This is based on a combination of

Christian and my previous attempts at this work.
This creates a new RBToolsConsole which wraps two rich Console objects

for stdout and stderr. This also includes a few helpers for multi-step

operations, some basic status levels, progress, spinners, and table

output. This console is first created in a command's __init__, but

will get recreated after we parse command-line options in order to

properly support the new --color=[auto,always,never] option.
When commands are running in JSON output mode, a handler is pushed onto

the console that suppresses output. This allows commands to do what

they've always done: unconditionally write to both stdout/stderr and the

json output object, and whichever one is expected to run will work. The

existing output wrappers have also been updated to write through the

console object, so that can take advantage of the same suppression

method.
All uses of the old colorama, tqdm, and texttable libraries have

been replaced with the new rich output, but I've held off on other

output prettification for a separate change.

Ran unit tests.
Tested the various values of the --color option, the COLOR_MODE

  config key, and the NO_COLOR and FORCE_COLOR environment variables.
Tested rich output for the info, install, post, and status

  commands.