DRILL-8235: Add Storage Plugin for Google Sheets

[cgivre]

DRILL-8235: Add Storage Plugin for Google Sheets

Description

Google Sheets is a very commonly used data source among business users. Presto and other query engines do include integrations with Google Sheets and so it would be useful for Drill to add this functionality.

The proposed plugin supports both reading and writing to Google Sheets.

Here's a quick demo:
https://www.youtube.com/watch?v=pS2FKxrluBA

This PR makes a few addition minor modifications that are not directly related to Google Sheets.

• Modification to the OAuth token storage to allow plugins besides HTTP to use Drill's token storage mechanism
• Modification to the OAuth token storage to store the token expiration time.
• Reapplication of .gitignore and removing some files which should have been ignored. Note this caused a unit test to break, so I had to rename a file to fix this.
• This PR also integrates DRILL-8270

Documentation

Docs in README.

• Finalize Unit Tests
• Fix writer
• Remove logback file.
• Code cleanup
• Fix LGTM bugs

Testing

Manually tested and added unit tests.

[lgtm-com]

This pull request introduces 12 alerts when merging 2817ce2 into 1189e25 - view on LGTM.com

new alerts:

• 6 for Boxed variable is never null
• 2 for Spurious Javadoc @param tags
• 2 for Dereferenced variable may be null
• 1 for Container contents are never initialized
• 1 for Implicit narrowing conversion in compound assignment

[jnturton]

Nice demo vid! Before I dive in, I see that a review has been requested but the PR is also marked draft. Can I switch it over to reviewable? Btw, I like the sheet specification syntax here and it's something I wondered about when doing a bug fix on the Excel format plugin recently. But I guess Excel being a format plugin, this syntax is not available and we have to stick with the format config opt that we have?

[cgivre]

Thanks @jnturton !! You certainly may start reviewing if you like. I left it as draft for the moment as there is still some minor cleanup and debugging that I have to do. I don't anticipate any major changes, but I'm adding more unit tests and fixing all the LGTM / CodeQL issues and stuff like that. If you want to start... please feel free.

[lgtm-com]

This pull request introduces 4 alerts when merging 4f35184 into 1189e25 - view on LGTM.com

new alerts:

• 2 for Dereferenced variable may be null
• 1 for Container contents are never initialized
• 1 for Implicit narrowing conversion in compound assignment

[lgtm-com]

This pull request introduces 4 alerts when merging 9c5389f into a27eb66 - view on LGTM.com

new alerts:

• 2 for Dereferenced variable may be null
• 1 for Container contents are never initialized
• 1 for Implicit narrowing conversion in compound assignment

[lgtm-com]

This pull request introduces 3 alerts when merging 0862185 into af493aa - view on LGTM.com

new alerts:

• 1 for Container contents are never initialized
• 1 for Dereferenced variable may be null
• 1 for Implicit narrowing conversion in compound assignment

[cgivre]

@jnturton This is now ready for review.

[cgivre]

@jnturton Thank you very much for your review of this beast. I believe I have addressed all your comments, as well as fixed the final bugs with the writer.

[jnturton]

Thanks for all the fixes. Just two minor items remaining from me.