Dnfile

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* BREAKING CHANGE: each heap stream's .get() returns a HeapItem instead of bytes
* FEATURE: All HeapItem objects include the RVA of where they were retrieved
* FEATURE: HeapItemBinary objects allow easy access to interpreted item size (CompressedInt)
* FEATURE: HeapItemString and UserString allow easy access to raw bytes and interpreted value
* improvements to pypi publishing and tox testing

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* fix github workflow

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* BREAKING CHANGE: Minimum required Python version is now 3.8
* BUGFIX: ValueError fired before UnicodeDecodeError when parsing assembly resources
* BUGFIX: mdtable row run-lists of size one were being ignored
* BUGFIX: some struct file offsets were RVA values
* FEATURE: Add ``clr_lazy_load`` option for lazy loading Metadata tables and assembly resources
* move from legacy setup.py to pyproject.toml and tox
* bump dev dependencies: mypy and isort
* update tests and examples
* update README badge to use download statistics from pypistats

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* BREAKING CHANGE: rename GenericMethod mdtable to MethodSpec per ECMA 335
* parse more resources, even if there are exceptions

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* FEATURE: parse ``Schema`` stream as MetaDataTables
* BUGFIX: MDTableRow off-by-one for end of run
* BUGFIX: MethodSemanticsRow typo list of tables for the Method Index
* more test data

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* FEATURE: access .NET resources (not same as PE resources!) by a shortcut
* BUGFIX: dnstrings example
* more attributes default to None
* update dev dependencies
* remove some warnings