Sandboxed android_sdk_repository rule implementation

[mgalindo-sc]

Repository rule to fetch the android sdk archives instead of relying on the local installation

Usage:

android_sdk_repository(
    name = "androidsdk",
    api_level = 35,
    build_tools = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
    build_tools_version = "34.0.0",
    cmdline_tools = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
    emulator = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
    ndk = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
    platform_tools = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
    platforms = sdk_package(
        darwin_sha256 = ...,
        darwin_url = ...,
        linux_sha256 = ...,
        linux_url = ...,
    ),
)