Sublime text keymap to map shift+home and shift+end to highlight current line

Default (OSX).sublime-keymap

[
  { "keys": ["ctrl+super+g"], "command": "find_all_under" },
  { "keys": ["super+f2"], "command": "find_all_under" },
  { "keys": ["super+alt+l"], "command": "split_selection_into_lines" },
  { "keys": ["super+b"], "command": "toggle_side_bar" },
  { "keys": ["super+shift+b"], "command": "build" },
  { "keys": ["alt+up"], "command": "swap_line_up" },
  { "keys": ["alt+down"], "command": "swap_line_down" },
  { "keys": ["shift+home"], "command": "move_to", "args": { "to": "bol", "extend": true } },
  { "keys": ["shift+end"], "command": "move_to", "args": { "to": "eol", "extend": true } },
  { "keys": ["super+shift+home"], "command": "move_to", "args": { "to": "bol", "extend": false } },
  { "keys": ["super+shift+end"], "command": "move_to", "args": { "to": "eol", "extend": false } }
]