Counting Bloom Filter support in indexlr

[vlad0x00]

Indexlr should be templated on Bloom filter type. Right now it only supports plain Bloom filters.
Counting Bloom filters were implemented already in indexlr by @MurathanGoktas at https://github.com/bcgsc/btllib/tree/murathan-hackathon-may
but it doesn't template indexlr and instead it replaces the plain ones.

The templated indexlr should be instantiated for each Bloom filter type to allow wrappers to generate code for them.

[vlad0x00]

Indexlr executable should also accept a goldilocks range option if a CBF is given to filter minimizers.