feat[dev-cli]: support custom image when exec ao build

[RyanKung]

Support the ao build command to invoke local/custom Docker images, facilitating local development and testing.

ao build --help

Usage:   ao build
Version: 0.1.7

Description:

  Build the Lua Project into WASM

Options:

  -h, --help            - Show this help.
  -i, --image  <image>  - Specify a custom Docker image to use

[RyanKung]

for commit 652d1c5.

The project can be c/lua/cpp or rust, so I updated the document.