Refactor application configuration

See merge request !233

Closes #5, #10, #13, #39, and #69.

Tonic improvements

Closes #83, #82, and #56

See merge request !239

Closes #83.

- The precedence of nested binds was such that deeper binds override
higher-level binds, however a bound value takes precedence over an
argument given at the call site. This is now fixed such that
higher-level binds always take precedence.
- Add `f.bind(p=forced('val'))` and `f(p=forced('val'))` syntax to
disregard higher-level binds.
- Emit warnings whenever precedence is resolved: for conflicting
higher-level binds or explicit argument at the call site or forcing.

Closes #82.

Add Sphinx-based documentation generation

Closes #70

See merge request !235

Closes #56.

More reconstruction algorithms

See merge request !214

Also tries to improve consistency with new configuration conventions.

Take input files from the TestFileDB

Closes #76

See merge request !236

Closes #76.

Add HLT2 test for all lines and particle makers, tidy up D02HH line module

See merge request !216

Add test profiling the python config

See merge request !231

- Add an options file that when inserted in the gaudirun.py options,
  runs cProfile and displays the results.
- Add a test that uses these options and asserts the hlt1
  configuration does not take more than 10 cpu seconds (real + sys).

See #75.

Also add/fix some makers that the tests showed were broken.

Add zipping of SOA tracks + PV relations demonstrator

See merge request !229

Fix graphing of tool inputs

See merge request !227

This allows us to verify whether tools should or should not belong to
individual Algorithm instances, e.g. if a Tool instance should be
private, then each call to its `configure` must pass in a parent.

Broken by !225.

Add HLT1 single muon lines

See merge request !219

Takes !184, !83, and parts of !209 and adapts them to the new configuration style.

Generate data and control flow graphs by default

Closes #62, #18, and #48

See merge request !225

Add TrackMVA and TwoTrackMVA implementations

See merge request !223