Update SDK

For a long time I have used the 10.8 SDK as floor to support the widest range of platforms. Now, it’s time to move on.

The following plugins have been updated to 10.11 (i386 x86_64) and 10.14 (x86_64):

• 4d-plugin-common-crypto
• 4d-plugin-window-button
• 4d-plugin-gs