add test inkycal code

tests/test_inkycal_vikunja.py

@@ -0,0 +1,23 @@
+import requests
+import json
+
+api_url = 'http://192.168.50.10:3456/api/v1/'
+
+def _create_url(path):
+    return api_url + path
+def _post_login_request(username, password, totp_passcode):
+    login_url = _create_url('login')
+    payload = {
+        'long_token': True,
+        'username': username,
+        'password': password,
+        'totp_passcode': totp_passcode
+    }
+    return requests.post(login_url, json=payload, timeout=5)
+
+if __name__ == '__main__':
+    username = 'iicd'
+    password = '9297519Mhz.'
+    totp_passcode = None
+    result = _post_login_request(username, password, totp_passcode)
+    print(result.json())