[rb] Add macOS key mappings for Options and Function keys (#15959)

* Add macOS key mappings for Options and Function keys

* Fix macOS key mapping for Options key to match correct value

* Add numpad key mappings to Selenium WebDriver Keys

according to the standard https://w3c.github.io/webdriver/#keyboard-actions

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Co-authored-by: Augustin Gottlieb <[email protected]>

Author: iampopovich

rb/lib/selenium/webdriver/common/keys.rb

@@ -75,6 +75,13 @@ module Keys
         subtract: "\ue027",
         decimal: "\ue028",
         divide: "\ue029",
+        numpad_multiply: "\ue024",
+        numpad_add: "\ue025",
+        numpad_comma: "\ue026",
+        numpad_subtract: "\ue027",
+        numpad_decimal: "\ue028",
+        numpad_divide: "\ue029",
+        numpad_enter: "\ue007",
         f1: "\ue031",
         f2: "\ue032",
         f3: "\ue033",
@@ -95,6 +102,8 @@ module Keys
         right_control: "\ue051",
         right_alt: "\ue052",
         right_meta: "\ue053",
+        options: "\ue052",
+        function: "\ue051", # macOS Function key, same as right_control
         numpad_page_up: "\ue054",
         numpad_page_down: "\ue055",
         numpad_end: "\ue056",