Configuration cleanup

[jvanstraten]

The new code is pretty close to what it used to be in terms of functionality, only AXI fields are still missing. It's probably about time to merge it back into master.

[codecov]

Codecov Report

Merging #1 into master will decrease coverage by 4.45%.
The diff coverage is 84.22%.

@@            Coverage Diff             @@
##           master       #1      +/-   ##
==========================================
- Coverage   87.18%   82.72%   -4.46%     
==========================================
  Files          26       69      +43     
  Lines        3206     4713    +1507     
==========================================
+ Hits         2795     3899    +1104     
- Misses        411      814     +403

Impacted Files	Coverage Δ
vhdmmio/vhdl/address_decoder.py	98.75% <ø> (ø)
vhdmmio/vhdl/behavior/base.py	84.4% <ø> (ø)
vhdmmio/vhdl/interface.py	100% <ø> (ø)	⬆️
vhdmmio/vhdl/behavior/interrupt.py	35% <ø> (ø)
vhdmmio/html/__init__.py	9.02% <ø> (+1.81%)	⬆️
vhdmmio/template.py	98.05% <ø> (ø)	⬆️
vhdmmio/vhdl/behavior/__init__.py	100% <ø> (ø)
vhdmmio/vhdl/behavior/primitive.py	77.9% <ø> (ø)
vhdmmio/config/behavior/custom.py	100% <100%> (ø)
vhdmmio/config/features.py	100% <100%> (ø)
... and 120 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 553f26b...e823a05. Read the comment docs.