Create base parser

[arthur-fontaine]

Description

The base parser is an abstract class that can be extended by other parsers (such as the kaz parser, the figma parser...).

Acceptance Criteria

• export an abstract class ParserBase
  • should have a load method that will return all inputs (such as .kaz files, figma urls, etc.)
  • should have a parse method which will take all inputs returned by the load method, and return valid TransformerInput

Tasks

• rename kaz-file-parser to kaz-ast
• create the abstract class ParserBase

Additional Information

Why rename kaz-file-parser to kaz-ast?

Because in Kazam there are also entities that are called "parsers", we need to make the name kaz-file-parser (which is not a Kazam parser) more specific.