simplify/update development flow

[edaniszewski]

updates to the dev flow to start cleaning it up and make it a bit simpler. the idea here is to reduce the dependency on heavy tooling so things run quickly, and to ultimately have tox do all the tasks instead of the layers of makefile stuff that is happening. there will be more updates and simplifications to the dev flow in the future, this is just a first step.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (v3/staging@f12cc85). Click here to learn what that means.
The diff coverage is 60%.

@@              Coverage Diff              @@
##             v3/staging     #268   +/-   ##
=============================================
  Coverage              ?   84.37%           
=============================================
  Files                 ?       47           
  Lines                 ?     1318           
  Branches              ?        0           
=============================================
  Hits                  ?     1112           
  Misses                ?      206           
  Partials              ?        0

Impacted Files	Coverage Δ
synse_server/app.py	33.33% <ø> (ø)
synse_server/log.py	77.77% <ø> (ø)
synse_server/scheme/__init__.py	100% <ø> (ø)
synse_server/commands/__init__.py	100% <ø> (ø)
synse_server/routes/aliases.py	100% <ø> (ø)
synse_server/config.py	100% <ø> (ø)
synse_server/routes/base.py	100% <ø> (ø)
synse_server/routes/core.py	91.54% <0%> (ø)
synse_server/commands/fan_sensors.py	7.21% <0%> (ø)
synse_server/plugin.py	88.59% <100%> (ø)
... and 6 more

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