WIP: Sketch continuation and taks class.

This first sketch of the classes captures what we think is needed in terms of general interface and very mich WIP.
4 jobs from coninuation in 25 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #3367
build_cmake

00:14

 
  Test
failed #3368
run_tests

00:11

 
  Sanitizer
skipped #3370
run_address_sanitizer
skipped #3369
run_thread_sanitizer
 
Test run_tests
compilation terminated.
lib/pls/CMakeFiles/pls.dir/build.make:62: recipe for target 'lib/pls/CMakeFiles/pls.dir/src/pls.cpp.o' failed
make[2]: *** [lib/pls/CMakeFiles/pls.dir/src/pls.cpp.o] Error 1
make[1]: *** [lib/pls/CMakeFiles/pls.dir/all] Error 2
CMakeFiles/Makefile2:104: recipe for target 'lib/pls/CMakeFiles/pls.dir/all' failed
Makefile:140: recipe for target 'all' failed
make: *** [all] Error 2
./ci_scripts/run_tests.sh: line 9: ./bin/tests: No such file or directory
ERROR: Job failed: exit code 1