Implement write changes for CRUD spec

This ticket tracks the addition of the following Collection methods:

• bulk_write
• insert_one
• insert_many
• delete_one
• delete_many
• replace_one
• update_one
• update_many
• find_one_and_delete
• find_one_and_replace
• find_one_and_update

The following existing methods will be Deprecated, to be removed in some future release:

• insert
• save
• update
• remove
• find_and_modify