FakePDB Versions Save

• ida: fix .dll support
• fakepdb: add ability to generate .lib files

Thanks to:

• @p0358

• json: store RVAs instead of EAs
• json: added labels export
• ida: added compatibility with IDA Pro v7.4
• ida: added ability to export labels (Ctrl+Shift+5)
• pdbgen: sync with LLVM master
• pdbgen: improved PE32+ binaries support

Thanks to @laomaiweng

• first release