WFCORE-4376 Fix deprecation warnings resulting from the improper deprecation of AbstractCapability.

[pferraro]

https://issues.jboss.org/browse/WFCORE-4376

AbstractCapability was deprecated a little over a year ago. However, because RuntimeCapability inherits most of its Capability method implementations from it, users of RuntimeCapability encounter lots of inappropriate deprecation warnings when referencing many of the non-deprecated methods from the Capability interface. This PR fixes that and any compilation errors resulting from the invocation of these methods from a raw-typed RuntimeCapability.

[wildfly-ci]

Core - Full Integration Build 8303 outcome was FAILURE using a merge of cc8444a
Summary: Tests failed: 1 (1 new), passed: 4782, ignored: 132 Build time: 02:24:18

Failed tests

org.jboss.as.test.integration.domain.OrderedChildResourcesTestCase.testOrderedChildResources: java.lang.AssertionError: expected:<{
    "statistics-enabled" => false,
    "protocol" => {
        "MPING" => undefined,
        "MERGE3" => undefined,
        "FD_SOCK" => undefined,
        "FD_ALL" => undefined,
        "VERIFY_SUSPECT" => undefined,
        "pbcast.NAKACK2" => undefined,
        "UNICAST3" => undefined,
        "pbcast.STABLE" => undefined,
        "pbcast.GMS" => undefined,
        "MFC" => undefined,
        "FRAG3" => undefined
    },
    "relay" => undefined,
    "transport" => {
        "TCP" => undefined,
        "TRANSPORT" => undefined
    }
}> but was:<{
    "statistics-enabled" => false,
    "protocol" => {
        "MPING" => undefined,
        "MERGE3" => undefined,
        "FD_SOCK" => undefined,
        "VERIFY_SUSPECT" => undefined,
        "pbcast.NAKACK2" => undefined,
        "UNICAST3" => undefined,
        "pbcast.STABLE" => undefined,
        "pbcast.GMS" => undefined,
        "MFC" => undefined,
        "FRAG3" => undefined
    },
    "relay" => undefined,
    "transport" => {
        "TCP" => undefined,
        "TRANSPORT" => undefined
    }
}>
java.lang.AssertionError: 
expected:<{
    "statistics-enabled" => false,
    "protocol" => {
        "MPING" => undefined,
        "MERGE3" => undefined,
        "FD_SOCK" => undefined,
        "FD_ALL" => undefined,
        "VERIFY_SUSPECT" => undefined,
        "pbcast.NAKACK2" => undefined,
        "UNICAST3" => undefined,

[jmesnil]

@pferraro patch looks good to me. Could you please open a WFCORE issue so we can track this change?

[pferraro]

@jmesnil No problem. Will fix today.