Warning when compiling czkawka_core: struct `Hamming` is never constructed

[juozaspo]

Bug Description A warning about uninitialized struct is shown when compiling czkawka_core as a dependency to czkawka_cli or czkawka_gui with --release command line parameter.

warning: struct `Hamming` is never constructed
  --> czkawka_core/src/similar_videos.rs:60:8
   |
60 | struct Hamming;
   |        ^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default
...
warning: `czkawka_core` (lib) generated 1 warning

Steps to reproduce: Build czkawka_gui or czkawka_cli on Linux with one of command line commands listed: cargo build --bin czkawka_gui --release, cargo build --bin czkawka_cli --release and wait until czkawka_core (lib) is about to be built.

System

• Czkawka/Krokiet version: latest master (7.0.0, 2a32a52aa882f6ff52ba4d3e24a666dc2a86cf9b)
• OS version: Ubuntu 22.04 LTS 64 bit, rust 1.78.0
• Installation method: git