Create API endpoint to store RaspberryPiLogs

[mfekadu]

Objective

Add API to store scraped RasperryPiLogs following the model of #53 .

• Useful comment: [WIP] Adds SQLAlchemy code for QuestionAnswerPairs #53 (comment)

• also see Add endpoint to store scraped courses #47 which used @app.route to make an REST endpoint that the RaspberryPi can talk to via simply import requests

Key Result

Scraped RasperryPiLogs are saved in database.

Details

• Add API to accept a list of scraped RasperryPiLogs
• Create save_rpi_logs() function in database_wrapper to build SQLAlchemy RasperryPiLogs object and save it to the database.

@chidiewenike And Tyler Herzog are good points of contact

[chidiewenike]

Current solution is a dictionary fed into Google Firebase. The dictionary is as follows:

log_dict = {
"entity" : "[extracted entity]",
"normalized question" : "[input question with the variable extracted and tag replaced]",
"question" : "[user input question]",
"answer" : "[the answer from the NLP function]"
}