Block unknown process type deployment (fixes #276)

[trapsidanadir]

Explicitly block unsupported and builtin process type during deployment from the API.

[codecov]

Codecov Report

Merging #288 (a586cb7) into master (0e0449a) will increase coverage by 0.06%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master     #288      +/-   ##
==========================================
+ Coverage   73.36%   73.42%   +0.06%     
==========================================
  Files          61       61              
  Lines        9674     9680       +6     
  Branches     1431     1435       +4     
==========================================
+ Hits         7097     7108      +11     
+ Misses       2176     2171       -5     
  Partials      401      401              

Impacted Files	Coverage Δ
weaver/processes/wps_package.py	66.71% <80.00%> (+0.97%)	⬆️
weaver/processes/utils.py	50.93% <100.00%> (+0.46%)	⬆️

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[trapsidanadir]

test_execute_job_with_inline_input_values and test_execute_job_with_array_input tests stopped passing after adding the new validations.