Updated project structure and some file names.

Restored `requirements.txt`

Updated `setup.py` to include new repository url and contact details.

Moved the rtsp code from `record` to `stream`.

Updated project structure to make it more readable and developer friendly - moved mixins to the `mixins` package, moved handlers to the `handlers` package.

Moved files not belonging to anything in particular to the `util` package.

Updated `camera` class to also defer login call.

Deleted unused files like `config_handler`.

reolinkapi/handlers/rest_handler.py

@@ -0,0 +1,44 @@
+import requests
+from typing import List, Dict, Union, Optional
+
+
+class Request:
+    proxies = None
+
+    @staticmethod
+    def post(url: str, data: List[Dict], params: Dict[str, Union[str, float]] = None) -> \
+            Optional[requests.Response]:
+        """
+        Post request
+        :param params:
+        :param url:
+        :param data:
+        :return:
+        """
+        try:
+            headers = {'content-type': 'application/json'}
+            r = requests.post(url, verify=False, params=params, json=data, headers=headers,
+                              proxies=Request.proxies)
+            if r.status_code == 200:
+                return r
+            else:
+                raise ValueError(f"Http Request had non-200 Status: {r.status_code}", r.status_code)
+        except Exception as e:
+            print("Post Error\n", e)
+            raise
+
+    @staticmethod
+    def get(url: str, params: Dict[str, Union[str, float]], timeout: float = 1) -> Optional[requests.Response]:
+        """
+        Get request
+        :param url:
+        :param params:
+        :param timeout:
+        :return:
+        """
+        try:
+            data = requests.get(url=url, verify=False, params=params, timeout=timeout, proxies=Request.proxies)
+            return data
+        except Exception as e:
+            print("Get Error\n", e)
+            raise