Add sketches of our new interface methods
Add bulk operations for everything, not just insert
Move bulk operations to their own interface

This means we won't break back compat on IBlobCache
Add a proxy class for bulk operations

Just like JsonSerializationMixin
Create an interface for bulk operations for objects
Allow "OR REPLACE" in Insert all in SQLite3
Implement Bulk Insert
Implement the rest of the bulk commands in the SQLite backend
Write a test for bulk GetAll
Fix SQL syntax
GetAsync with > 1 key shouldn't throw
Write some more tests
Test for Invalidate
Implement the default bulk object ops
Fix encrypted SQLite3 caches
Implement bulk object ops in SQLite3
Copy pasta similar tests for object bulk ops
Fix dem bugs
Merge pull request #80 from jlaanstra/master-v3

Project files fixes, reference improvements and more small fixes.
Fix up Xamarin projects