Create definitive set of violation codes and descriptions

### Overview
Create violation code and description standard using historical data and law/code references.

### Details
Violation codes and descriptions are direct references to the municipal and state codes and shortened descriptions of said codes, respectively. Despite there being a finite set of these codes and descriptions, there is a lot of variation in both values--indicating that they are probably entered in by hand. Using historical data and knowledge of the state and municipal codes/descriptions that are accessible on the web, we need a cleaned up set of codes and descriptions and a way to clean the dataset to align to this new standard.

### Action items
- [ ] Download the raw dataset
- [ ] Analyze just the violation codes and descriptions
- [ ] Reference state and municipal codes
- [ ] Create standard code and description set
- [ ] Suggest code/methods to clean raw dataset to conform to this new standard

### Resources/Instructions

- Los Angeles Municipal Code for parking: https://library.municode.com/ca/los_angeles_county/codes/code_of_ordinances?nodeId=TIT15VETR_DIV3PEFEREVISTPALA
- California Vehicle Code: https://leginfo.legislature.ca.gov/faces/codesTOCSelected.xhtml?tocCode=VEH&tocTitle=+Vehicle+Code+-+VEH