beremiz

Fix failing PLC build when building freshly created project that use default libraries blocks. When controller loads libraries according to attibutes in project files (BeremizRoot/Enable_{libname}_Library), use known default if attribute is missing.
{
"ID": "wamptest",
"active": true,
"protocolOptions": {
"autoPingInterval": 60,
"autoPingTimeout": 20
},
"realm": "Automation",
"url": "ws://127.0.0.1:8888"
}