Make [`developmentStatus` property](https://github.com/hjonin/codemeta-tools/blob/4f7619dc244161240cd767be07e36db11a995eae/src/schemas.ts#L190) an enum like [license](https://github.com/hjonin/codemeta-tools/blob/4f7619dc244161240cd767be07e36db11a995eae/src/schemas.ts#L115): * Using [repostatus.org standard](https://www.repostatus.org/) for values. * Keeping values static in code.
Make
developmentStatusproperty an enum like license: