refactor!: v0.3 API changes

[sxyazi]

success and code are now properties instead of methods of Status

local status = Command("ls"):spawn():wait()
- ya.err("success:", status:success(), "code:", status:code())
+ ya.err("success:", status.success, "code:", status.code)

Renamed is_block_device, is_char_device, and is_socket of Cha

• is_block_device => is_block
• is_char_device => is_char
• is_socket => is_sock