Implement code coverage tool (#1390)

* Implement code coverage tool

* Switch to solution style of running tests

* Add shell version of coverage file

* Fix formatting in coverage.sh

* Add trailing newline to powershell

test/coverage.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+# Set defaults if no values supplied
+CONFIGURATION="Release"
+OUTPUT="CoverageOutput"
+REPORT_TYPE="lcov"
+
+
+# Read in arguments
+while [[ $# -gt 0  ]]; do
+    key="$1"
+
+    case $key in
+        -c|--configuration)
+
+        CONFIGURATION="$2"
+        shift
+        shift
+        ;;
+        -o|--output)
+        OUTPUT="$2"
+        shift
+        shift
+        ;;
+        -rt|--reportType)
+        REPORT_TYPE="$2"
+        shift
+        shift
+        ;;
+        *)
+        shift
+        ;;
+    esac
+done
+
+echo "CONFIGURATION = ${CONFIGURATION}"
+echo "OUTPUT = ${OUTPUT}"
+echo "REPORT_TYPE = ${REPORT_TYPE}"
+
+echo "Collectiong Code Coverage"
+# Install tools
+dotnet tool restore
+# Print Environment
+dotnet --version
+
+if [[ -d $OUTPUT ]]; then
+    echo "Cleaning output location"
+    rm -rf $OUTPUT
+fi
+
+dotnet test "./bitwarden.tests.sln" /p:CoverletOutputFormatter="cobertura" --collect:"XPlat Code Coverage" --results-directory:"$OUTPUT" -c $CONFIGURATION
+
+dotnet tool run reportgenerator -reports:$OUTPUT/**/*.cobertura.xml -targetdir:$OUTPUT -reporttype:"$REPORT_TYPE"