Changes to Create Asset

added the new optional request property external_id

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property current_value/anyOf[subschema #2]

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property growth_rate/anyOf[subschema #2]

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property purchase_price/anyOf[subschema #2]

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property sell_price/anyOf[subschema #2]

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property unit_price/anyOf[subschema #2]

removed the pattern ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ from the request property units/anyOf[subschema #2]

added the optional property external_id to the response with the 201 status