The purpose of this change

To improve readability of CMake code by distinguishing numeric values from other. and adding REQUIRED to the list of parameters that should get some syntactic icing sugar.

I recently was running into issues with a large cmake project and had troubles reading it. After realising that most of my worries came from the fact that I had a deprecated cmake vscode extension that was ruining all syntax highlighting, I decided to try and improve it by submitting what i believe would be a good change to the repo.

Note: I was able to get this working on the main branch as well but since this commit d217cac, effectively removed the advanced syntax highlighting that i was fond of in the latest update I decided to submit the pull request here where they could be combined together to make it very nice to look at. IDK if that was correct, if you want i can submit the pull request from this change

Other Notes/Information

Example:

This was just a sample CMakeLists.txt file, using the Andromeda Italic Bordered theme with the following pull request EliverLara/Andromeda#40 which improves its syntax highlighting for cmake.
this pull request can be effectively replicated by adding the following code to the settings.json file

"editor.tokenColorCustomizations": {
            "[Andromeda Italic Bordered]": {
                "textMateRules": [
                    {
                        "scope": "string.unquoted",
                        "settings": {
                            "foreground": "#D5CED9"
                        }
                    },
                    {
                    "scope": "support.type",
                        "settings": {
                            "foreground": "#c74ded"
                        }
                    }
                ]
            }
        }

As you can see.
Very Mindful. Very Demure.