emacs: add ctags jump keyboard shortcut

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: add more ignore regexp

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: add mc-font.el for font settings

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: remove emacs menubar

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: add org mode settings

Signed-off-by: Micky Ching <mickyching@163.com>