Simplify simple scope settings

[waruqi]

option("test1")
    set_default(true)
    set_showmenu(true)
    set_description("test1 option")

option("test2")
    set_default(true)
    set_showmeu(true)

option("test3")
    set_default("hello")

For some simple scope settings, we can simplify to

option("test1", {default = true, showmenu = true, description = "test1 option"})
option("test2", {default = true, showmenu = true})
option("test3", {default = "hello"})

In addition to option, we can also simplify some target scopes.

target("demo")
    set_kind("binary")
    add_files("src/*.c")

target("demo", {kind = "binary", files = "src/*.c"})