there are many exported functions in standard library but some functions' JSDocs are missing

here is the list of ts files that need to be updated

• encoding/hex.ts
• encoding/toml.ts
• fmt/colors.ts
• fmt/printf.ts
• fs/walk.ts
• http/file_server.ts
• io/streams.ts
• io/util.ts
• log/mod.ts
• node/querystring
• node/url.ts
• node/util.ts
• path.posix.ts
• path/win32.ts
• testing/assert.ts
• testing/diff.ts
• uuid/mod.ts
• uuid/v1.ts
• uuid/v4.ts
• uuid/v5.ts
• ws/mod.ts