Run pytest on Azure with increased verbosity (#1287)

Run `pytest` with the `-v` option in Azure Pipelines. In some situations
might be good to know precisely which tests functions are being run and
with which combination of parameters in Azure Pipelines.

.azure-pipelines/matrix.yml

@@ -47,7 +47,7 @@ jobs:
               source "${HOME}/conda/etc/profile.d/conda.sh"
               conda activate simpeg-test
               export KMP_WARNINGS=0
-              pytest ${{ test }} --cov-config=.coveragerc --cov=SimPEG --cov-report=xml --cov-report=html -W ignore::DeprecationWarning
+              pytest ${{ test }} -v --cov-config=.coveragerc --cov=SimPEG --cov-report=xml --cov-report=html -W ignore::DeprecationWarning
             displayName: 'Testing ${{ test }}'
 
           - script: |