v0.2.1: track required_for_publishing for config fields

What's Changed

• [SPE-1245] Add required for publishing by @chase-crumbaugh in #2

Full Changelog: v0.2.0...v0.2.1

v0.2.0: add generation version

feat: add generation version

v0.1.7: fix nil panic setting defaults

fix: panic when setting defaults

v0.1.6: fix for populating defaults

fix: for populating defaults

v0.1.5: support detailed field info for generation configuration

Merge pull request #1 from speakeasy-api/feat/spe-1150

[SPE-1150] Add language config field type

v0.1.4: fixes to indentation and tests

fix: fixes to indentation and tests

v0.1.3: fix for writing wrong config back to disk

fix: writting wrong config

v0.1.2: make sure defaults are always written to config

fix: make sure defaults are always written to config

v0.1.1: only upgrade if upgrade func available

fix: only upgrade if upgrade func available

v0.1.0: add sdkFlattening config

feat: add sdkFlattening config