Feat/pecha plaintext parser

[tenzin3]

The Pecha Parser is designed with the following key principles in mind:

• High Abstraction: The parser provides a high level of abstraction to simplify its use.
• Custom Pipeline Flexibility: Users can create custom pipelines to suit their specific needs.

The parser operates with the following logic:

1. Input Text: Accepts the text to be processed.
2. Segmenter: Segments the text using one of the following methods: Space Segmenter New Line Segmenter Regex Segmenter
3. Annotation Name: Assigns a name to the segmented text. The annotation name must be selected from a predefined list of enums.