more flexible decompression

[bluegenes]

• aim to fix allow other compression formats #40 by using niffler for decompression

current issue:

   error[E0277]: `dyn std::io::Read` cannot be sent between threads safely
         --> src/directsketch.rs:217:51
          |
      217 |         let mut fastx_reader = parse_fastx_reader(&mut reader).context("Failed to parse FASTA/FASTQ data")?;
          |                                ------------------ ^^^^^^^^^^^ `dyn std::io::Read` cannot be sent between threads safely
          |                                |
          |                                required by a bound introduced by this call
          |
          = help: the trait `Send` is not implemented for `dyn std::io::Read`, which is required by `&mut Box<dyn std::io::Read>: Send`
          = note: required for `Unique<dyn std::io::Read>` to implement `Send`
      note: required because it appears within the type `Box<dyn std::io::Read>`
         --> /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/alloc/src/boxed.rs:195:12
          = note: required because it appears within the type `&mut Box<dyn std::io::Read>`
      note: required by a bound in `parse_fastx_reader`
         --> /Users/ntward/.cargo/registry/src/index.crates.io-6f17d22bba15001f/needletail-0.5.1/src/parser/mod.rs:80:50
          |
      80  | pub fn parse_fastx_reader<'a, R: 'a + io::Read + Send>(
          |                                                  ^^^^ required by this bound in `parse_fastx_reader`
      
      For more information about this error, try `rustc --explain E0277`.

[bluegenes]

Hmm, if can't use niffler directly to get reader, could use niffler to sniff format and the xz2 lib (with tokio feature) directly to read. Would need to explicitly enable each format in that case..