Implement Intent/SignedIntent Hash formatted method

[micbakos-rdx]

• Method added in src and uniffi exports
• Required for 1.5.0 Hot fixes babylon-wallet-ios#1070 (comment)

[CyonAlexRDX]

Great! Good job!

[codecov]

Codecov Report

Attention: Patch coverage is 95.65217% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 99.2%. Comparing base (2e55016) to head (33a2043).

Additional details and impacted files

@@            Coverage Diff            @@
##           develop     #56     +/-   ##
=========================================
- Coverage     99.2%   99.2%   -0.1%     
=========================================
  Files          420     420             
  Lines         7508    7529     +21     
  Branches         4       4             
=========================================
+ Hits          7455    7475     +20     
- Misses          53      54      +1     

Flag	Coverage Δ
kotlin	100.0% <100.0%> (ø)
rust	99.1% <94.1%> (-0.1%)	⬇️
swift	99.7% <ø> (ø)

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Files	Coverage Δ
.../java/com/radixdlt/sargon/extensions/IntentHash.kt	100.0% <100.0%> (ø)
...com/radixdlt/sargon/extensions/SignedIntentHash.kt	100.0% <100.0%> (ø)
...low_level/transaction_hashes/transaction_hashes.rs	96.7% <94.1%> (-1.1%)	⬇️