net/tightvnc: add patches

Security: CVE-2014-6053
Security: CVE-2018-7225
Security: CVE-2018-20021
Security: CVE-2018-20022
Security: CVE-2019-8287
Security: CVE-2019-15678
Security: CVE-2019-15679
Security: CVE-2019-15680
Security: CVE-2019-15681
MFC: 2023Q3

Fix build with clang16
Replace deprecated XKeycodeToKeysym
Allow for space characters in the home directory name