Deprecate kotlinc K/N scripts because they clash with real kotlinc

Also make them print the message clarifying that it's Kotlin/Native,
not Kotlin/JVM.

 #KT-43874 Fixed.

kotlin-native/cmd/kotlinc

@@ -17,4 +17,4 @@
 DIR="${BASH_SOURCE[0]%/*}"
 : ${DIR:="."}
 
-"${DIR}"/run_konan konanc "$@"
+"${DIR}"/run_konan kotlinc "$@"

kotlin-native/cmd/kotlinc.bat

@@ -14,4 +14,4 @@ rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 rem See the License for the specific language governing permissions and
 rem limitations under the License.
 
-call %~dps0run_konan.bat konanc %*
+call %~dps0run_konan.bat kotlinc %*