The testing framework still used "database" to refer to the blockchain, which doesn't make sense since we split the blockchain class from the database class. This commit updates the names/docs in the
test framework to use chain instead of database as appropriate.

In original design all messages passed between contracts would consist
of well defined types, these types would be used with code generation to
parse message data and then pass rich Wren objects to user defined
message handlers.  The switch to Web Assembly made this irrelevent and
counter productive.

Going forward applications will be able to define and publish their own
ABI and serialization techniques. This will make the core platform simpler.

Fixed code caching

Basic test of proxied voting passes

Make necessary changes to make it compile with g++

Supplementary docker operation detailed documentation

Adding missing float opcodes

Adding float opcodes that were removed from the non-float opcode macro, but missed being added to the float opcode macro

Removing float opcodes from non-float macro

Docker compile and docker-compose  start eos

WASM Float Instruction Rejection

Net_plugin first feature

Fix #34 - deterministic_randomness test failures

Fix dereference of DataStream struct

adds deterministic distribution functions for randutils
fixes shuffle to do deterministic shuffling
adds deterministic_distributions tests

I think I've implemented all of it, but it's not tested yet so I'm
leaving the issue open for now.

Define types, objects, and indexes necessary for proxied voting on
producers. Also, perform some necessary refactoring, as the old code
assumed the only way votes could be cast would be direct, not by proxy.