rhg: Expose FilelogEntry that wraps RevlogEntry
This can be later extended to access metadata such as `uncompressed_len` without
necessarily resolving deltas.
Differential Revision: https://phab.mercurial-scm.org/D11961
BasedOnStyle: LLVM
IndentWidth: 8
UseTab: ForIndentation
BreakBeforeBraces: Linux
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
AllowShortBlocksOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
IncludeCategories:
- Regex: '^<'
Priority: 1
- Regex: '^"'
Priority: 2