Add SHOW STORAGE INFO and SHOW BUILD INFO query methods

[rahuld109]

Description

Add get_storage_info() and get_build_info() methods to the Memgraph class for retrieving storage and build information.

Usage:

from gqlalchemy import Memgraph

memgraph = Memgraph()

# Get storage information
storage_info = memgraph.get_storage_info()
# Returns: [{"storage info": "vertex_count", "value": 100}, ...]

# Get build information
build_info = memgraph.get_build_info()
# Returns: [{"build info": "build_type", "value": "Release"}]

Pull request type

• Feature

Related issues

Closes #254
Closes #255

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[CLAassistant]

All committers have signed the CLA.

[antejavor]

Code looks good, let's wait for CI.