Update Default CCU Fee

[Phanco]

What was the problem?

This PR resolves #9147

How was it solved?

1. Updated ccuFee to 0 as default
2. When ccuFee is 0, computeMinFee is used
3. All examples and test have suggested 500000 fee

How was it tested?

Test cases added

[codecov]

Codecov Report

Merging #9153 (e6a7c5d) into hotfix/6.0.1 (f825978) will increase coverage by 0.01%.
Report is 1 commits behind head on hotfix/6.0.1.
The diff coverage is 100.00%.

Additional details and impacted files

@@               Coverage Diff                @@
##           hotfix/6.0.1    #9153      +/-   ##
================================================
+ Coverage         83.51%   83.53%   +0.01%     
================================================
  Files               606      606              
  Lines             22826    22839      +13     
  Branches           3364     3367       +3     
================================================
+ Hits              19064    19078      +14     
+ Misses             3762     3761       -1     

Files	Coverage Δ
...nder/src/bootstrapping/commands/blockchain/hash.ts	94.28% <100.00%> (+0.16%)	⬆️
...ain-connector-plugin/src/chain_connector_plugin.ts	79.00% <100.00%> (+0.76%)	⬆️
...sk-framework-chain-connector-plugin/src/schemas.ts	100.00% <ø> (ø)

... and 1 file with indirect coverage changes