Outdated entitlement instructions on GDB WIki

Hi!

I've tested and verified that the single entitlement documented in 
1.3.1. of https://sourceware.org/gdb/wiki/PermissionsDarwin is 
insufficient for macOS Catalina at least, and possibly even for Mojave.

Instead, I've had to use an expanded set of entitlements documented at 
https://www.thomasvitale.com/how-to-setup-gdb-and-eclipse-to-debug-c-files-on-macos-sierra/, 
i.e.:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
     <key>com.apple.security.cs.allow-jit</key>
     <true/>
<key>com.apple.security.cs.allow-unsigned-executable-memory</key>
     <true/>
<key>com.apple.security.cs.allow-dyld-environment-variables</key>
     <true/>
<key>com.apple.security.cs.disable-library-validation</key>
     <true/>
<key>com.apple.security.cs.disable-executable-page-protection</key>
     <true/>
     <key>com.apple.security.cs.debugger</key>
     <true/>
     <key>com.apple.security.get-task-allow</key>
     <true/>
</dict>
</plist>

Appreciate it if someone could update the above wiki page, as I'm not 
permitted to do it myself. Thanks much!

Best Regards,
Adrian