uds config variable check only on deploy

[decleaver]

follow on to #618

Currently config validation is being done in the root init function which gets called before any command code.

The config code is going through variables and making sure they are uppercase, but this should only be done when running a deploy command. It is not needed for the other commands.

	for pkgName, pkgVar := range bundleCfg.DeployOpts.Variables {
		for varName, varValue := range pkgVar {
			// delete the lowercase var and replace with uppercase
			delete(bundleCfg.DeployOpts.Variables[pkgName], varName)
			bundleCfg.DeployOpts.Variables[pkgName][strings.ToUpper(varName)] = varValue
		}
	}

	// ensure the DeployOpts.SharedVariables vars are uppercase
	for varName, varValue := range bundleCfg.DeployOpts.SharedVariables {
		// delete the lowercase var and replace with uppercase
		delete(bundleCfg.DeployOpts.SharedVariables, varName)
		bundleCfg.DeployOpts.SharedVariables[strings.ToUpper(varName)] = varValue
	}

Possible solution:

• calling the loadViperConfig function in the preRun for every command and refactoring the loadViperConfig function to take in the cmd that is being called. That cmd can then be used to to check if those for loops need to run.