[WIP] Implement Effects

[DenisTok]

Implement Effects

Status

• Ready
• Development
• Hold

Description

Copy code from #430 and make changes. For example and as start point I make speed effect.

Related issues

Where can I add insert_effect function?

Checklist

• Ran cargo fmt, cargo clippy --all-targets, cargo build --release and cargo test and fixed any generated errors!
• Removed unnecessary commented out code
• Used specific traces (if you trace actions please specify the cause i.e. the player)

PS: I am new in rust, any advice and tips accepted