add soroban prev 8 support

• use soroban as sdk 0.1.8
• add soroban prev 8 support
• add host interface 32 support

add token contract example

• adds the token contract example
• updates the other examples for sdk v 0.1.2

add deployer example

0.1.1

add deployer example

update for sdk v. 0.1.0

• update example code
• refactor auth example (uses next auth now)
• improve docs

use sdk v. 0.0.7

uses as-soroban-sdk v. 0.0.7

use sdk v. 0.0.6

• now uses sdk v. 0.0.6
• improved example descriptions

add auth example

0.0.5

add auth example

Initial examples

adds examples for as-soroban-sdk v. 0.0.4