[#6326] improve(CLI): Make CLI more extendable and maintainable.

[Abyss-lord]

What changes were proposed in this pull request?

Make CLI more extendable and maintainable.
design doc: https://docs.google.com/document/d/1JU20XPHBMb-boOhdNmeZC9acyYupuj7EvQKfc1JaJBo/edit?usp=sharing

Why are the changes needed?

Fix: #6326

Does this PR introduce any user-facing change?

No

How was this patch tested?

local test + ut

# ======= METALAKE =======
❯ gcli metalake details -m demo_metalake -i --output table
# +---+---------------+-------------+
# |   |   METALAKE    |   COMMENT   |
# +---+---------------+-------------+
# | 1 | demo_metalake | new comment |
# +---+---------------+-------------+

❯ gcli metalake details -m demo_metalake -i
# demo_metalake, new comment

❯ gcli metalake list  -m demo_metalake -i --output table
# +---+-------------------+
# |   |     METALAKE      |
# +---+-------------------+
# | 1 | demo_metalake     |
# | 2 | test_cli_metalake |
# | 3 | tyy               |
# | 4 | demo3             |
# | 5 | demo_metalake2    |
# +---+-------------------+

❯ gcli metalake list  -m demo_metalake -i
# demo_metalake
# test_cli_metalake
# tyy
# demo3
# demo_metalake2

❯ gcli metalake details -m demo_metalake -i --output table --quiet
# no output

# ======= CATALOG =======
❯ gcli catalog list  -m demo_metalake -i --output table
# +---+-------------------+
# |   |     CATALOG       |
# +---+-------------------+
# | 1 | File              |
# | 2 | Hive_catalog      |
# | 3 | Iceberg_catalog   |
# | 4 | Mysql_catalog     |
# | 5 | Test_hive_catalog |
# +---+-------------------+

❯ gcli catalog list  -m demo_metalake -i
# File
# Hive_catalog
# Iceberg_catalog
# Mysql_catalog
# Test_hive_catalog

❯ gcli catalog details  -m demo_metalake --name Hive_catalog  -i --output table
# +---+--------------+------------+----------+-------------+
# |   |   CATALOG    |    TYPE    | PROVIDER |   COMMENT   |
# +---+--------------+------------+----------+-------------+
# | 1 | Hive_catalog | RELATIONAL | hive     | new comment |
# +---+--------------+------------+----------+-------------+

❯ gcli catalog details  -m demo_metalake --name Hive_catalog  -i
# Hive_catalog, RELATIONAL, hive, new comment

[Abyss-lord]

@justinmclean @tengqm , could you please review this PR when you have time? I’d really appreciate your feedback. plz review my new design

[tengqm]

I'll refrain from leaving comments here till I get a whole picture about where we are heading.