Added port-job for disabling extension management; applied to Haiku and Termux packages

Former-commit-id: eb66222b45b41fbd92712dacd23ed825ba377982
Former-commit-id: 0544589759a4e41c005aae8a6b00fcdff58f72d9

package.sh

@@ -155,6 +155,7 @@ urls {
     cd port-jobs
     ./SHEBANG.sh
     ./RMSERVER.py
+    ./RMEXTMAN.py
     ./CLIPTOOL.py
     ./CLIPBOARD.py HAIKU
     ./UNAME.py TMP
@@ -243,6 +244,7 @@ _create_termux() {
     cp lib/* port-jobs/working/
     cd port-jobs
     ./RMSERVER.py
+    ./RMEXTMAN.py
     ./CLIPTOOL.py
     ./CLIPBOARD.py TERMUX
     ./UNAME.py TERMUX