Add object-curly-spacing rule (#38)

test/rules.out

@@ -6,11 +6,19 @@ ERROR: /rules/import-spacing.ts[1, 8]: missing whitespace
 ERROR: /rules/import-spacing.ts[2, 17]: missing whitespace
 ERROR: /rules/import-spacing.ts[2, 9]: missing whitespace
 ERROR: /rules/import-spacing.ts[1, 7]: missing whitespace
+ERROR: /rules/import-spacing.ts[1, 7]: A space is required after '{'
+ERROR: /rules/import-spacing.ts[1, 22]: A space is required before '}'
+ERROR: /rules/import-spacing.ts[2, 8]: A space is required after '{'
+ERROR: /rules/import-spacing.ts[2, 17]: A space is required before '}'
 ERROR: /rules/no-constant-condition.ts[1, 5]: unexpected constant condition
 ERROR: /rules/no-inner-declarations.ts[4, 20]: block is empty
 ERROR: /rules/no-inner-declarations.ts[4, 12]: 'test' is declared but never used.
 ERROR: /rules/no-inner-declarations.ts[4, 3]: move function declaration to program root
 ERROR: /rules/no-multi-spaces.ts[1, 22]: Multiple spaces found before 'true'.
+ERROR: /rules/object-destruct-spacing.ts[1, 13]: A space is required after '{'
+ERROR: /rules/object-destruct-spacing.ts[1, 19]: A space is required before '}'
+ERROR: /rules/object-destruct-spacing.ts[1, 26]: A space is required after '{'
+ERROR: /rules/object-destruct-spacing.ts[1, 32]: A space is required before '}'
 ERROR: /rules/semicolon.ts[1, 24]: Unnecessary semicolon
 ERROR: /rules/ter-arrow-spacing.ts[5, 11]: Multiple spaces found before '=>'.
 ERROR: /rules/ter-indent.ts[11, 1]: Expected indentation of 2 spaces but found 3.

test/rules/object-destruct-spacing.ts

@@ -0,0 +1 @@
+const fn = ({field}) => ({field})

tslint.js

@@ -174,6 +174,7 @@ module.exports = {
       {
         'allowSingleLine': true
       }
-    ]
+    ],
+    'object-curly-spacing': [true, 'always']
   }
 }