Include a script to install macvim as system/user level vim commands

Instructions: Replace the template text and remove irrelevant text (including this line)

Is your feature request about something that is currently impossible or hard to do? Please describe the problem.
Include a script to MacVim installation for users to use MacVim as system or user level vim commands (vim, view, vimdiff, etc.)

Describe the solution you'd like
Include a script to MacVim installation, maybe in /Application/MacVim/Contents/scripts/install_macvim_links

The script could look like:

#!/bin/sh

MVIM_DIR="/Applications/MacVim.app/Contents/bin"
DEST_DIR="$HOME/.local/bin"
mkdir -p "$DEST_DIR"

(
cd "$MVIM_DIR" || {
    echo "Cannot change to dir $MVIM_DIR"
    exit 2
}

for fn in vim vimdiff view gvim gvimdiff gview; do
    target="$(pwd)/$fn"
    echo "Linking $target into $DEST_DIR..."
    ln -sf "$target" "$DEST_DIR"
done
)

Describe alternatives you've considered
Leave the suffer to the users

Additional context
https://superuser.com/a/1697239/114255

首先检查建议的位置 /Applications/MacVim.app/Contents/scripts/install_macvim_links 以及现有的 MacVim 安装布局。检查 vim、view、vimdiff、gvim、gvimdiff 和 gview 命令是如何提供的，然后验证该脚本支持所请求的用户级和系统级使用，且不会破坏现有链接。