v0.3.0

• Added type conversion functions
  • env0::parse_int
  • env0::parse_bool
  • env0::to_bytes
  • env0::to_int
  • env0::to_string_bool
  • env0::to_string_int
• Added functions for work given in linear memory
  • env0::contains
  • env0::drop
  • env0::drop_right
  • env0::index_of
  • env0::last_index_of
  • env0::take
  • env0::take_right
• Added contains_key function
  • env0::contains_key
• Implemented function to retrieve block fields (In place of get_block_timestamp and get_block_height)
  • env1::block
• Added Rust CDK bindings codegeneration