[Feature] add optional terminate condition for recurring job

[dev8723]

Summary

Add a terminate_condition attribute to the job, it's optional and has same type as the condition which is used to decide if a job is executable, terminate_condition decides if a recurring job should be terminated (i.e. stop creating follow up job) when it executed successfully.

If terminate_condition resolves to true or fail to resolve, recurring job will be terminated. Similar to condition resolves to true or fail to resolve, job will be executed.

Test plan

• Unit test
• Deploy the contract to localterra or testnet and verify if a DCA job can terminate by the terminate condition.

[dev8723]

originally implemented in #34, but since we are splitting the contract now, adopt the latest change for terminate_condition

[vladjdk]

We need to include the terminate_condition in the all_vector_vars_present and string_vars_in_vector functions during the check in the QueryValidateJobCreation to account for the presence of vars in the terminate function. The rest looks fine to me

[dev8723]

We need to include the terminate_condition in the all_vector_vars_present and string_vars_in_vector functions during the check in the QueryValidateJobCreation to account for the presence of vars in the terminate function. The rest looks fine to me

Pushed a new commit to fix that.

[vladjdk]

lgtm! nice work on this one