SA search testing

What's Changed

• SA search tests by @BramDevlaminck in #25

Full Changelog: 1.0.2...1.0.3

Filter away empty functional annotation string in search result

Merge pull request #24 from BramDevlaminck/empty_annotation_filter

filter away empty annotation string

Cargo dependency cleanup

This release does not introduce any features.
Only the dependencies of the suffix array are cleaned up.

Suffix array peptide matching

Fast, memory efficient peptide matching with suffix arrays

Ukkonen with NULL value represented by usize::MAX

• Added some tests
• use a lib.rs file
• Rewrite the use of <Option<usize>> to use a type alias of usize with a NULL value trait

Ukkonen with option type

• Working implementation of Ukkonen (or at least it should work)
• All values that are possibly null are wrapped inside an Option => this has a lot of memory overhead (Option = 16 byte while usize is 8 byte big)