[Feat] Single user column

[adrinr]

Description

Feature branch for the new single user column. This only includes the following reviewed PRs:

• Single user column type #13543
• Fix user relationship to user column migration #13594
• Clean BBReferenceProcessor code #13603
• Fix filtering #13615
• Googlesheets user fixes #13620
• Fix binding panel #13669
• Updating binding tests to test single column #13656

Addresses

• BUDI-8123 - Single user column type
  

QA scenarios

Tested DBs:

• Internal couch
• PG
• MSSQL
• MYSQL
• Google sheets

Tested scenarios

• Existing single user column can be fetched and displayed in grid, form and as binding
• Existing multiple user column can be fetched and displayed in grid, form and as binding
• Existing single user column data can be edited
• Existing multiple user column data can be edited
• Data section shows the correct grid headers for existing columns
• Data section shows the correct dropdown info on edit column
• New single user column can be created, populated and edited. Bindings still work
• New single user column can be created, populated and edited. Bindings still work
• Existing user list can still be can be created, populated and edited
• Import/export works
• User relationship -> user column migration (only for internal db)
• All column types (existing and news) can be exported and imported
• Filter grid by value
• Filter grid by bindings
• Dynamic filter

Launchcontrol

Adding a new column type for single user references

[samwho]

Given that this is an amalgamation of the linked PRs, I'm giving it an approval so we can get it in next week. 🙂

[mike12345567]

LGTM - can't wait to use this, massive improvement to the binding experience!