feat(query): support describe user statement

[b41sh]

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Summary

• support describe user statement.
• show users add network_policy, password_policy and must_change_password column.

for example:

root@0.0.0.0:48000/default> CREATE NETWORK POLICY test_network_policy ALLOWED_IP_LIST=('192.168.100.0/24');

root@0.0.0.0:48000/default> CREATE PASSWORD POLICY test_password_policy
    PASSWORD_MIN_LENGTH = 12
    PASSWORD_MAX_LENGTH = 24
    PASSWORD_MIN_UPPER_CASE_CHARS = 2
    PASSWORD_MIN_LOWER_CASE_CHARS = 2
    PASSWORD_MIN_NUMERIC_CHARS = 2
    PASSWORD_MIN_SPECIAL_CHARS = 2
    PASSWORD_MIN_AGE_DAYS = 1
    PASSWORD_MAX_AGE_DAYS = 30
    PASSWORD_MAX_RETRIES = 3
    PASSWORD_LOCKOUT_TIME_MINS = 30
    PASSWORD_HISTORY = 5
    COMMENT = 'test comment';

root@0.0.0.0:48000/default> CREATE USER user10 IDENTIFIED BY '123456abcDE@#' WITH SET PASSWORD POLICY='test_password_policy', SET NETWORK POLICY='test_network_policy';

root@0.0.0.0:48000/default> DESC USER user10;

┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│  name  │ hostname │       auth_type      │ default_role │  roles │ disabled │    network_policy   │    password_policy   │ must_change_password │
│ String │  String  │        String        │    String    │ String │  Boolean │   Nullable(String)  │   Nullable(String)   │   Nullable(Boolean)  │
├────────┼──────────┼──────────────────────┼──────────────┼────────┼──────────┼─────────────────────┼──────────────────────┼──────────────────────┤
│ user10 │ %        │ double_sha1_password │              │        │ false    │ test_network_policy │ test_password_policy │ NULL                 │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
1 row read in 0.091 sec. Processed 0 row, 0 B (0 row/s, 0 B/s)


root@0.0.0.0:48000/default> SHOW USERS;

┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│   name  │ hostname │       auth_type      │ is_configured │  default_role │     roles     │ disabled │    network_policy   │    password_policy   │ must_change_password │
│  String │  String  │        String        │     String    │     String    │     String    │  Boolean │   Nullable(String)  │   Nullable(String)   │   Nullable(Boolean)  │
├─────────┼──────────┼──────────────────────┼───────────────┼───────────────┼───────────────┼──────────┼─────────────────────┼──────────────────────┼──────────────────────┤
│ default │ %        │ no_password          │ YES           │ account_admin │ account_admin │ false    │ NULL                │ NULL                 │ NULL                 │
│ root    │ %        │ no_password          │ YES           │ account_admin │ account_admin │ false    │ NULL                │ NULL                 │ NULL                 │
│ user10  │ %        │ double_sha1_password │ NO            │               │               │ false    │ test_network_policy │ test_password_policy │ NULL                 │
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
3 rows read in 0.069 sec. Processed 3 rows, 472 B (43.49 rows/s, 6.68 KiB/s)

• fixes: #[Link the issue here]

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is