Merge branch 'injectable-expressions'

Registered variable expressions for argument matching.

* injectable-expressions:
  Revise sim docs and docstrings for variable expressions
  Add to dependency injection section of docs
  Refer to dependency injection in sim function docstrings
  Move and edit variable expressions section
  Fix and revise docs for simulation framework
  Add python markup to simulation docs
  Update docs for registered variable expressions
  Add test to sim framework for adding column expressions to table
  Add test to simulation framework for variable name with space
  Add more tests for simulation framework
  Fix _tables_used in sim to convert tuple to list
  Fix _tables_used in sim to include tables of columns
  Refer to injected things as registered variables
  Injectable expressions using default values for kwargs
Update SeriesWrapper docstring in simulation framework
Name of decorated sim functions default to function name

Use the function name for tables, table sources, columns, and
injectables in decorated functions if no name is provided.
Add tests for decorated sim function defaults
Update docs for decorated sim function defaults
Expand section on accessing columns in tables

[ci-skip]