feat(source/odata): Add Odata source and tool

[ameya-sap]

Description

Should include a concise description of the changes (bug or feature), it's
impact, along with a summary of the solution

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🛠️ Fixes #<issue_number_goes_here>

[gemini-code-assist]

Code Review

This pull request introduces support for OData integrations, adding a new OData source and tool implementation along with corresponding documentation and tests. The feedback suggests aligning the OData tool implementation with the repository's canonical pattern by embedding tools.ConfigBase and tools.BaseTool[Config] in the configuration and tool structs. Additionally, the reviewer identified redundant code in internal/tools/odata/odata.go, specifically identical branches in a conditional URL assignment and a redundant parameter mapping block for function imports.

[Yuan325]

Hi @ameya-sap thank you for opening this PR! In addition to the feedbacks, we'll also need to add the integration test step in .ci/integration.cloudbuild.yaml.

I've also created a new branch (odata-branch). We can merge into that branch for now. When we're ready to release this feature, we can merge it into main :)

[Yuan325]

/gcbrun

[Yuan325]

/gcbrun

[Yuan325]

/gcbrun