Security update for teeworlds

This update for teeworlds to version 0.7.5 fixes the following issues:

Security issues fixed:

- CVE-2020-12066: Fixed a denial of service against the server (boo#1170252)
- CVE-2019-20787: Fixed an integer overflow when computing a tilemap size (boo#1170253)

Non-security issues fixed:

- multiple smaller bug fixes and improvements.

This update was imported from the openSUSE:Leap:15.1:Update update project.

Fixed bugs
bnc#1170252
VUL-0: CVE-2020-12066: teeworld: denial of service against server
bnc#1170253
VUL-0: CVE-2019-20787: teeworld: integer overflow when computing a tilemap size
Selected Binaries
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