Add HASHMAP comprehension

[mwpowellhtx]

Such as useful feature with recent versions of Arma 3, the HASHMAP.

• createHashMap
• createHashMapFromArray
• get
• getOrDefault
• insert
• keys
• merge
• set

[blackfisch]

since this Repo hasn't been updated since december and no release for about 3 years, I created an extension forked from this one with support for commands from current Arma versions: https://marketplace.visualstudio.com/items?itemName=blackfisch.sqf-language

[mwpowellhtx]

@blackfisch Brilliant sir, brilliant. One of my interests there was to allow for users to specify command patterns. I do not know quite along the lines how much of that is possible, or even worth doing. But I think it is great, thank you, sir!