Support to export packages/options

[waruqi]

pr #1253

Export includedirs/linkdirs of packages/options

add_packages("pcre2", {public = true})
add_options("foo", {public = true})

Only export linkdirs/links of packages/options by default

add_packages("pcre2")
add_options("foo")

Related issues:

#1104
#1109
#1240

Example

add_rules("mode.debug", "mode.release")
add_requires("pcre2")

target("test")
    set_kind("shared")
    add_packages("pcre2", {public = true})
    add_files("src/test.cpp")

target("demo")
    add_deps("test")
    set_kind("binary")
    add_files("src/main.cpp")  -- we can uses pcre2 packages