CSUB-612: Check TX total cost (incl fees) before sending

[pLabarta]

Description of proposed changes

This PR introduces some utils for checking TX fees. The main one is requireEnoughFundsToSend which calculates the account balance after sending the transaction and checks if it's able to maintain the existential deposit (1 CTC). It also implements it in all commands that submit extrinsics.

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Practical tips for PR review & merge:

• All GitHub Actions report PASS
• Newly added code/functions have unit tests
  • Coverage tools report all newly added lines as covered
  • The positive scenario is exercised
  • Negative scenarios are exercised, e.g. assert on all possible errors
  • Assert on events triggered if applicable
  • Assert on changes made to storage if applicable
• Modified behavior/functions - try to make sure above test items are covered
• Integration tests are added if applicable/needed

[github-actions]

For full LLVM coverage report click here!

[atodorov]

Looks good to me now:

[gluwa@fedora cc-cli]$ node dist/index.js chill  -u ws://127.0.0.1:9946 
✔ Specify a seed phrase for the Controller account … *******************************************************************************
Creating chill transaction...
Caller 5Eq3uWk9WAzPt4RRVXg1cuNWZN7StujipUg5V7Kme1YN2P7F has insufficient funds to send the transaction and maintain existential deposit; transaction cancelled.

[nathanwhit]

One typo, otherwise LGTM

[codecov-commenter]

Codecov Report

Merging #1194 (0d38b36) into dev (496db30) will decrease coverage by 59.86%.
The diff coverage is 25.71%.

@@            Coverage Diff             @@
##              dev   #1194       +/-   ##
==========================================
- Coverage   69.52%   9.67%   -59.86%     
==========================================
  Files         100      25       -75     
  Lines       11765     765    -11000     
  Branches       87      89        +2     
==========================================
- Hits         8180      74     -8106     
+ Misses       3585     691     -2894     

Impacted Files	Coverage Δ
scripts/cc-cli/src/commands/distributeRewards.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/commands/send.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/commands/setKeys.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/commands/unbond.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/commands/withdrawUnbonded.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/commands/wizard.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/utils/bond.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/utils/validate.ts	0.00% <0.00%> (ø)
scripts/cc-cli/src/utils/tx.ts	27.65% <50.00%> (+27.65%)	⬆️

... and 76 files with indirect coverage changes

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