Add TypeDoc to lisk-transactions

[Tschakki]

What was the problem?

This PR resolves #7901

Please note there is currently a bug in TypeDoc with the effect that references between packages are not working, see TypeStrong/typedoc#1835

How was it solved?

• Export relevant data structures
• Add relevant code comments
• Add typedoc to the dev dependencies
• Add typedoc options to the package.json in each package.
• Create typedoc.json and include required options for generating the docs properly.
• Create new folder docs/typedoc to store generated typeDocs

How was it tested?

cd lisk-sdk/
npx typedoc

Result

https://liskhq.github.io/lisk-docs/lisk-sdk/v6/references/typedoc/modules/_liskhq_lisk_transactions.html

[codecov]

Codecov Report

Merging #7909 (dc1d627) into development (3214cf7) will increase coverage by 0.00%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff              @@
##           development    #7909   +/-   ##
============================================
  Coverage        82.25%   82.25%           
============================================
  Files              578      578           
  Lines            20908    20913    +5     
  Branches          3037     3037           
============================================
+ Hits             17198    17203    +5     
  Misses            3710     3710           

Impacted Files	Coverage Δ
elements/lisk-transactions/src/constants.ts	100.00% <ø> (ø)
elements/lisk-transactions/src/format.ts	100.00% <ø> (ø)
elements/lisk-transactions/src/schema.ts	100.00% <ø> (ø)
elements/lisk-transactions/src/sign.ts	92.30% <ø> (ø)
elements/lisk-transactions/src/validate.ts	91.66% <ø> (ø)
elements/lisk-transactions/src/fee.ts	100.00% <100.00%> (ø)
elements/lisk-transactions/src/index.ts	100.00% <100.00%> (ø)