feat: add omit and pick

[leognutzmann]

• Pick function: Adds Pick function, which generates a new map containing the specified keys. Any keys that do not exist in the original map are ignored.
• Omit Function: Adds Omit function, designed to produce a new map that excludes the specified keys. Similar to Pick, any non-existent keys in the original map are ignored.

[leognutzmann]

Yes, there is: https://ramdajs.com/docs/#omit https://ramdajs.com/docs/#pick