Users can use this feature by
1. Setting PRODUCT_INCLUDE_TAGS += <val> in their product mk files
2. Set
```
blueprint_packge_includes {
match_al: ["<val>"],
}
other_module_type {name: foo}
other_module_type {name: bar}
```
bar and foo will be included if and only if <val> is set
Test: Unit tests in blueprint
Test: TH
Change-Id: I32eed4e3b5ac47fb565c62d13d8881fa984c86f4
c576383336