[#34] Execute block number and timestamp

[daenamkim]

Resolves #34

Add new custom formulas (functions) to deal with a block number and a timestamp.

• [x] Add new new functions
• [x] Update tests after a updated MultiBaas deployed => https://github.com/curvegrid/multibaas-for-google-sheets/issues/54

[daenamkim]

This will be done after https://github.com/curvegrid/multibaas/pull/2899 is complete

[daenamkim]

@shoenseiwaso FYI, I tried a lot, currently Apps Script could not be updated from Google Workspace Marketplace SDK (or something wrong Google Sheets?) but I have no idea because there is no error. For this reason I tested manually this using integrated scripts in a spreadsheet.

No system issue as well:

• https://status.cloud.google.com/
• https://developers.google.com/apps-script/guides/support/outage-log
• https://www.google.com/appsstatus#hl=en&v=status

And CI test codes will be done through https://github.com/curvegrid/multibaas-for-google-sheets/issues/54 after MultiBaas is deployed.