Move prompts into LLMs module (#70)

Since the only usage of prompt is within LLMs, it is reasonable to keep it within the LLM module. This way, it would be easier to discover module, and make the code base less complicated.

Changes:

* Move prompt components into llms
* Bump version 0.3.1
* Make pip install dependencies in eager mode

---------

Co-authored-by: ian <ian@cinnamon.is>

tests/test_composite.py

@@ -9,9 +9,9 @@ from kotaemon.composite import (
     SimpleBranchingPipeline,
     SimpleLinearPipeline,
 )
+from kotaemon.llms import BasePromptComponent
 from kotaemon.llms.chats.openai import AzureChatOpenAI
 from kotaemon.post_processing.extractor import RegexExtractor
-from kotaemon.prompt.base import BasePromptComponent
 
 _openai_chat_completion_response = ChatCompletion.parse_obj(
     {