Viv-utils

see discussion and walk through of development in this thread: https://github.com/williballenthin/lancelot/issues/112


breaking changes:
- `match_function_flirt_signatures` no longer returns the matched name (because there may be many)

fixes:
- provide `__name__` for `FlirtFunctionAnalyzer`
- adds all public names
- falls back to using local function names
- matches multi-function signatures
- handles special reference `.`

breaking change:
- `getWorkspace` may raise `IncompatibleVivVersion` on py3

fixes:
- `viv_utils.flirt` is now py2 source compatible (but will still error upon import due to python-flirt dep)

fixes:
- setup dependencies
- version number

adds:
- flag to `getWorkspace` and `getShellcodeWorkspace` disabling automatic analysis. useful when registering your own function analyzers.
- FLIRT matching submodule, motivated by https://github.com/fireeye/capa/issues/435, and implemented via `python-flirt` https://github.com/williballenthin/lancelot/tree/master/pyflirt

fixes:
- py3 support of logging message 15 Ana06

fixes:
- store viv version in meta, not config