[FluxScriptAdapter] Resources specified as a parameter are strings and break int comparisons

[FrankD412]

When testing a specification with Flux, I ran into the case where a parameterized resource field was carried through as a string. The adapter should probably try and cast the resources to their appropriate type instead of assuming the data type will be right.

2021-08-04 16:02:53,330 - maestrowf.conductor:main:387 - ERROR - ("'>' not supported between instances of 'str' and 'int'",)
Traceback (most recent call last):
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/conductor.py", line 382, in main
    completion_status = conductor.monitor_study()
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/conductor.py", line 352, in monitor_study
    completion_status = dag.execute_ready_steps()
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/datastructures/core/executiongraph.py", line 920, in execute_ready_steps
    self._execute_record(_record, adapter)
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/datastructures/core/executiongraph.py", line 589, in _execute_record
    retcode = record.execute(adapter)
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/datastructures/core/executiongraph.py", line 112, in execute
    retcode, jobid = self._execute(adapter, self.script)
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/datastructures/core/executiongraph.py", line 142, in _execute
    self.step, script, self.workspace.value)
  File "/usr/WS2/fdinatal/pyenv/blueos_3_ppc64le_ib_p9/versions/3.6.9/envs/maestrowf/lib/python3.6/site-packages/maestrowf/interfaces/script/fluxscriptadapter.py", line 208, in submit
    if processors > 0 and processors > ncores:
TypeError: '>' not supported between instances of 'str' and 'int'
2021-08-04 16:02:53,398 - maestrowf.conductor:main:391 - INFO - Study exiting, cleaning up...