insertOrUpdate, insertOrSkip table methods

These methods would be so useful.

1. insertOrUpdate( $insertion, $update ): Inserts a record with the $insertion values or, if it exists, updates the record with the $update values.
   Please have a look at Laravel's Eloquent implementation of the updateOrInsert method.
   I bet it does something like this
   INSERT INTO {$this->table_name} ( user_id, points ) VALUES( %d, %d ) ON DUPLICATE KEY UPDATE points = points + %d

2. insertOrSkip( $insertion ): Inserts a record with the $insertion values only if the item doesn't exist. Simple insert() throws the MySQL error (duplicate entry). The implementation is simple: INSERT IGNORE INTO instead of INSERT INTO

Maybe you would also add this method
3. forceInsert( $insertion ): Inserts a record after deleting it if it already exists.
https://dev.mysql.com/doc/refman/8.0/en/replace.html

No files or tests are named. Start by locating the existing table insert() methods, then review Laravel Eloquent's updateOrInsert reference and the linked MySQL semantics for ON DUPLICATE KEY UPDATE, INSERT IGNORE, and REPLACE. Done means the requested methods have defined behavior and coverage for their duplicate-record cases.