Improved Protocol 20 Support

• update for stable p20 support (see: #35)
• add sep-24 example doc
• remove experimental flag for soroban

Protocol 20 support

• extends horizon api responses for protocol 20
• update soroban tests to work with the testnet
• see also #31

SEP-24 & soroban prev 11

• add support for soroban prev. 11
• add support for sep-24
• update dependency for #30

soroban improvements

• add XdrSCMeta
• add contracts_amount and num_contracts to asset response

Soroban Prev. 10 support

PHP SDK now supports Soroban preview 10. This update brings many changes, so please refer to the
soroban doc and to the code in the soroban test cases.

fix AssetsRequesBuilder

• fix cursor return type

fix XdrLedgerKey parsing

• fix liquidity pool id parsing

fix soroban XdrSCSpec

• name and lib are now strings

Soroban improvements

• fix segment matcher for soroban events
• add nonce request for contract as invoker
• add custom account contract test case

soroban prev 9 improvements

• fix typo in method and variable name
• extend soroban documentation
• add contract auth from simulation test