Add commands for C5 - SD, RTC

Support OpenXC message format commands from v0.4.0 and VI v7.0.0.

Officially support running in Windows without Cygwin.

Fixes for code generation.

Fix compatibility with vehicle sim.

Match VI v6.x and add diagnostic message support.

Re-order generated code.

Fix code generation bugs.

Refactored documentation.

Binary output parsing and code gen speedup.