Retrieve informations once and use them in the whole program
- retrieve:
- [x] ep
- [x] head block
- [x] blockchain parameters
- [x] currency symbol
- [x] last UD value (only used in money related f())
- [x] cli_args? (available from the import)
- [ ] configuration (see #79)
- first block? (used once in `issuers`)
- …
- use them in the whole program
This speed-up silkaj execution because requests slow down performances.
issue