Support basic Sensor Things Api (STA) in istSOS

The goal of my project is to add OGC standard of Sensor Things API(STA) to istSOS project. The OGC SensorThings API provides an open, geospatial-enabled and unified way to interconnect the Internet of Things (IoT) devices, data, and applications over the Web. The project aims to extend interoperability and implement some of the basic APIs from STA that could be adopted in a new revised version of istSOS. FastAPI can be used for the request and response of the istSOS STA services. As PostgreSQL is used as the primary data store or data warehouse in istSOS project, data can be managed using postGIS which is a spatial database extender for PostgreSQL object-relational database. PostgREST is a standalone web server that could be used to turn the PostgreSQL database of STA data directly into a RESTful API. Finally the STA service can be integrated with the istSOS project.