fix: add classpath exception to launcher library

Signed-off-by: icelimetea <fr3shtea@outlook.com>

COPYING.md

@@ -230,6 +230,23 @@
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
 
+     Linking this library statically or dynamically with other modules is
+     making a combined work based on this library. Thus, the terms and
+     conditions of the GNU General Public License cover the whole
+     combination.
+
+     As a special exception, the copyright holders of this library give
+     you permission to link this library with independent modules to
+     produce an executable, regardless of the license terms of these
+     independent modules, and to copy and distribute the resulting
+     executable under terms of your choice, provided that you also meet,
+     for each linked independent module, the terms and conditions of the
+     license of that module. An independent module is a module which is
+     not derived from or based on this library. If you modify this
+     library, you may extend this exception to your version of the
+     library, but you are not obliged to do so. If you do not wish to do
+     so, delete this exception statement from your version.
+
      You should have received a copy of the GNU General Public License
      along with this program.  If not, see <https://www.gnu.org/licenses/>.