Bump version to 1.7.2

Fix type errors

Refactor AttackCategory enum verify

Migrate to `ty`

Fix mypy issue

Quick fix for optional deps

Add optional deps and update docs

Declare extra deps and install when building docs

Declare optional deps for attack

Ignore initializations for gradients aggregation

Add docs for DANAA

Fix AttackModel's preprocessing resolution fails on nn.Identity, close #44

Implementation of DANAA

Make mypy happy

Update ILPD for more built-in models support