Fix/animation with tqdm repairing (#47)

* Fix spinner animation with tqdm output and refactor Score-P stream reading

- Spinner no longer overlaps with tqdm due to proper threading.Event handling
- Score-P stdout and stderr are read in separate threads with chunked reading
- Animation is disabled in multicell mode when needed
- README.md and error logging improved

* multicellmode_timestamps removed from reading streams functions

* remove MCM from child process, check for multiple truthy values

* formatting, linter and bugfix in truthy values eval

* logging in files fixed, minor stream reading improvements

* disabling animations hint added

* getting stuck while reading pipes fixed

* KernelTestLogError fix

* hint message improved; logging dir renamed to logs_scorep_jupyter

* make log directory relative to project root

* error logs without suppressing and Logging Configuration section in README.md update

* logs directory name changed

* preserve subprocess output in variables to show later; hint message corrected

* hint logic changed to be shown in all cases

---------

Co-authored-by: OutlyingWest <[email protected]>
Co-authored-by: Elias Werner <[email protected]>

Author: 3 people

src/scorep_jupyter/kernel_messages.py

@@ -1,3 +1,4 @@
+import os
 from enum import Enum, auto
 
 from .logging_config import LOGGING

src/scorep_jupyter/userpersistence.py

@@ -501,7 +501,6 @@ def stop(self, done_message="Done."):
 
 
 def create_busy_spinner(lock=None, stop_event=None, is_multicell_final=False):
-
     is_enabled = str(
         os.getenv("SCOREP_JUPYTER_DISABLE_PROCESSING_ANIMATIONS")
     ).lower() not in ["true", "1", "t"]