Add Missing Entries

Files: thirdparty/cJSON/*
Copyright: 2009-2017 Dave Gamble and cJSON contributors
License: Expat

Files: vlib/semver/*
Copyright: 2020 alexesprit
License: Expat

Files: vlib/crypto/ed25519/*
Copyright: 2022 blackshirt
License: Expat

Fix "Unknown" Copyright

Files: examples/js_dom_draw_benchmark_chart/typescript_vanilla_typeorm/*
Copyright: Unknown

and:

Current:

Files: vlib/net/afunix.h
Copyright: Unknown

Investigate actual copyright holder or remove directory

Remove Spurious Entries (2)

• Remove vmarkdown/* (not in source)
• Verify/remove vc-bootstrap/* (not in source)