Improve pallet claims file structure (#6779)
Linked to issue #590.
I moved the mod, tests, mock and benchmarking to their own seperate file
to reduce the bloat inside claims.rs
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Co-authored-by: 
Guillaume Thiolliere <[email protected]>
Linked to issue #590.
I moved the mod, tests, mock and benchmarking to their own seperate file
to reduce the bloat inside claims.rs
---------
Co-authored-by: Guillaume Thiolliere <[email protected]>