Added postcss-variable-compress (#321)

Added .gitattributes file to fix file encoding

Co-authored-by: Dave Lunny <4298089+himynameisdave@users.noreply.github.com>

Author: navanshu

.gitattributes

@@ -0,0 +1 @@
+* text eol=lf 

docs/authors.md

@@ -418,6 +418,7 @@ Below is a list of all the wonderful people who make PostCSS plugins.
 |[MohammadYounes](https://github.com/MohammadYounes)   |    [`rtlcss`](https://github.com/MohammadYounes/rtlcss)   |   1388|
 |[mystrdat](https://github.com/mystrdat)   |    [`postcss-inrule`](https://github.com/salsita/postcss-inrule)   |   8|
 |[naaspati](https://github.com/naaspati)   |    [`jsmath`](https://github.com/naaspati/postcss-jsmath)   |   4|
+|[navanshu](https://github.com/navanshu)   |    [`postcss-variable-compress`](https://github.com/navanshu/postcss-variable-compress)   |   0|
 |[nekitk](https://github.com/nekitk)   |    [`postcss-easy-z`](https://github.com/CSSSR/postcss-easy-z)   |   35|
 |[nicksheffield](https://github.com/nicksheffield)   |    [`postcss-color-hexa`](https://github.com/nicksheffield/postcss-color-hexa)   |   7|
 |[notacouch](https://github.com/notacouch)   |    [`postcss-mqwidth-to-class`](https://github.com/notacouch/postcss-mqwidth-to-class)   |   6|

plugins.json

@@ -5185,5 +5185,15 @@
       "shortcuts"
     ],
     "stars": 0
+  },
+  {
+    "name": "postcss-variable-compress",
+    "description": "Compresses and abstracts CSS Custom Properties (variables) to make CSS file smaller.",
+    "author": "navanshu",
+    "url": "https://github.com/navanshu/postcss-variable-compress",
+    "tags": [
+      "optimizations"
+    ],
+    "stars": 0
   }
 ]