deleting the VSCode extension also deletes the C/C++ extensions

[jdbruner]

I discovered this when moving things between VSCode profiles. Disabling the Pico extension will disable other extensions as well; likewise, deleting the extension deletes other extensions also. Some of these are closely related, such as the Cortex debug extension, but it was an unwelcome surprise to discover that the C/C++ extensions - which I was using for other purposes as well - were also disabled and deleted.

[will-v-pi]

Already fixed in #59 so will be in the next release