[15349] Add base update post rest operation

package info.elexis.server.core.p2.jaxrs;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.stream.Collectors;

import javax.ws.rs.GET;

import javax.ws.rs.POST;

	@Path("updates")

	@ApiOperation(nickname = "checkUpdate", value = "check for available updates")

	public Response checkUpdates() {

		List<String> resultList = new ArrayList<>();

		Update[] possibleUpdates = ProvisioningHelper.getPossibleUpdates();

		if (possibleUpdates != null) {

			for (Update update : possibleUpdates) {

				resultList.add(update.toString());

			}

		}

		List<String> resultList = Arrays.asList(possibleUpdates).stream().map(Update::toString)

				.collect(Collectors.toList());

		return Response.ok(resultList).build();

	}