Account History vs Condenser unit tests - part 3

This is a follow-up to !825 (merged)

The current rough working plan on #428 (closed):

• Change do_the_testing to always test specific block.
• Employ raw string literals to simplify embedded patterns.
• Decouple get_ops_in_block testing from get_transaction
• Improve get_transaction testing by adding patterns (as implemented for get_ops_in_block).
• Add testing of get_account_history similar to the other two functions (patterns/scenarios).
• Continue splitting the test into smaller topic-determined ones.
• Supplement missing virtual operations in the tests.