Create compiler and nimsuggest packages (#22118)

I have tested it locally with the following in my local packages_official.json

```
  {
    "name": "compiler",
    "url": "https://github.com/yyoncho/Nim.git/?subdir=compiler",
    "method": "git",
    "tags": [
      "library",
      "compiler"
    ],
    "description": "Package providing the Nim compiler binaries plus all its source files that can be used as a library",
    "license": "MIT",
    "web": "https://github.com/nim-lang/Nim"
  },
  {
    "name": "nimsuggest",
    "url": "https://github.com/yyoncho/Nim.git/?nimsuggest=compiler",
    "method": "git",
    "tags": [
      "library",
      "compiler"
    ],
    "description": "Package providing the Nim compiler binaries plus all its source files that can be used as a library",
    "license": "MIT",
    "web": "https://github.com/nim-lang/Nim"
  },
```

Then `nimble install compiler`, `nimble install nimsuggest` work as expected.

1 files changed, 1 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index 89c67024e..fad7909bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -111,3 +111,4 @@ nimdoc.out.css
 # except here:
 !/nimdoc/testproject/expected/*
 pkgs/
+/compiler/compiler/