Implementation of ID* and IDC*

After a very long (almost two year) road, we have implemented a complete ID* and IDC* algorithm. This is based on Shpitser and Pearl, 2012, however it fixes several issues with the original algorithm returning incorrect results.

What's Changed

• Generalize P() function by @cthoyt in #57
• Small updates by @cthoyt in #58
• Update graph I/O and mutation algorithms by @cthoyt in #59
• More graph improvements to support ID/IDC by @cthoyt in #60
• Improve canonicalization algorithm by @cthoyt in #63
• Update type hints by @cthoyt in #64
• Add safe constructors by @cthoyt in #65
• Add canonicalized expression equals test by @cthoyt in #66
• Pre-ID updates by @cthoyt in #67
• Implement the ID and IDC algorithms by @cthoyt in #46
• Implement bracket notation for probabilities with L2 interventions by @cthoyt in #68
• Add y0 DSL output and generalize P() by @cthoyt in #61
• Update draw graph by @cthoyt in #77
• Expose distribution properties through probability DSL object by @cthoyt in #82
• Enforce graphs are only on variables by @cthoyt in #90
• Update expression in line 1 of identification by @cthoyt in #89
• Add zero element to DSL by @cthoyt in #96
• ⭐ Stars for everyone by @cthoyt in #98
• Update marginalize and conditional functions in DSL by @cthoyt in #100
• Add predicate to counterfactual variables for checking tautologies by @cthoyt in #101
• Fix graph types in design algorithm by @cthoyt in #107
• Add definition of "expression complexity" by @cthoyt in #105
• Add 3.10 testing by @cthoyt in #91
• Add generic simulation with Linear SCM by @cthoyt in #108
• Make counterfactual variables' interventions' star status explicit by @cthoyt in #111
• Refactor falsifications module by @cthoyt in #113
• Update notebooks by @cthoyt in #117
• Blacken notebooks by @cthoyt in #119
• Update packaging and meta by @cthoyt in #118
• Added ASKEM grant by @djinnome in #126
• Fix tox.ini by @cthoyt in #129
• Better canonicalize ordering by @cthoyt in #131
• Add parallel worlds and counterfactual graphs by @cthoyt in #128
• Automate testing notebooks by @cthoyt in #132
• Counterfactual notebook by @djinnome in #133
• Improve d-separation by @cthoyt in #135
• Improve term canonicalization by @cthoyt in #138
• Update minimum version to 3.10 by @cthoyt in #141
• Handle overlapping interventions by @cthoyt in #142
• Add tests for self-intervention by @cthoyt in #143
• Fix bug in conditional() by @cthoyt in #144
• Project cleanup by @cthoyt in #146
• Update default graph draw by @cthoyt in #147
• Implement ID* and IDC* by @djinnome in #140

Full Changelog: v0.1.0...v0.2.0