added dependency install shortcut in makefile

Author: jdarcyryan

makefile

@@ -15,6 +15,11 @@ setup:
 build:
 	pwsh -File './.build/scripts/Build-PSModule.ps1' -Verbose
 
+# Invokes PSDepend to gather dependencies
+# Installs required modules detailed in PSDepend.psd1
+depend:
+	pwsh -File './.build/scripts/Invoke-PSModulePSDepend.ps1' -Verbose
+
 # Run Pester tests with detailed output
 # Imports local Pester module, runs all tests, and displays detailed results
 pester: