Make VA allow to turn off prompting for a library password

[marianopeck]

We need to fix this in VA so that below code is not necessary:

	" Turn off prompting for a library password as currently there is no way to externally supply the password (EtTools class>>verifyUser always prompts)"
	replacementMethod :=
	    EmLibrary
	        basicCompile: 'isPasswordCheckingEnabled
	            ^false'
	        notifying: System errorLog
	        ifFail: [
	            System logError: 'Cannot turn off password checking'.
	            System exit: 9001 withObject: nil].
	EmLibrary methodDictionary at: #isPasswordCheckingEnabled put: replacementMethod.