made better sleep ignored sleep and added test for it

src/utils/bettersleep.py

@@ -1,10 +1,30 @@
-from time import sleep
+"""Onionr - Private P2P Communication.
+
+greenlet safe sleep, ignoring ctrl-c
+"""
+from gevent import sleep
+from onionrutils.epoch import get_epoch
+"""
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
 
 
 def better_sleep(wait: int):
     """Sleep catching ctrl c for wait seconds."""
+    start = get_epoch()
     try:
         sleep(wait)
     except KeyboardInterrupt:
-        pass
+        better_sleep(wait - (get_epoch() - start))