Lithops

Added
- [Standalone] Raise an exception when the ssh key is not found
- [Standalone] Raise an exception when the ssh key is not valid for login to the mater VM

Fixed
- [IBM VPC] Fixed get_ssh_client() method that in certain circumstances was not working properly

Added
- [AWS Batch] Added AWS Batch backend
- [Standalone] Allow to start workers using a public key instead of using a password
- [Standalone] Added different levels of worker verification
- [Infinispan] Added new Infinispan Hot Rod storage backend

Fixed
- [Core] Fixed map_reduce jobs
- [Standalone] Fixed internal executions in standalone
- [IBM VPC] Fixed issue that prevented creating workers on create|reuse modes
- [IBM VPC] Fixed issue with ip_address in consume mode
- [AWS Lambda] Allow to delete functions from other lithops versions through 'lithops runtime delete'
- [Core] Fixed FunctionExecutor.plot() when a list of futures is passed to the method
- [Infinispan] Fixes in Infinispan storage backend

Added
- [AWS_EC2] Added AWS EC2 Standalone backend
- [AWS_EC2] Allow to start workers using Spot instances in AWS EC2 Standalone backend
- [Standalone] Added the logic to create the missing delta of workers in reuse mode
- [Standalone] Cancel running job tasks on ctrl-c
- [Standalone] New logic to verify that the master VM is correctly setup
- [Standalone] Added new command "lithops attach" that allows to create live ssh connections to the master VM
- [Config] Allow to set monitoring_interval in config

Changed
- [Standalone] Improved the performance of the master VM when getting the free available workers (reuse mode)

Fixed
- [Standalone] Fixed VM initial installation script
- [Standalone] Fixed get_workers method on master
- [Standalone] Deleted unnecessary extra worker
- [Standalone] Ensure all workers are properly started on reuse mode
- [Localhost] Fixed storage delete_objects method that was deleting the entire folder of a file
- [IBM VPC] General fixes in IBM VPC backend

Added
- [CLI] Allow to pass all available 'docker' parameter to 'lithops runtime build' command
- [Multiprocessing] Add example file with different argument passing examples for Pool and Process

Fixed
- [Localhost] Fixed minor issue when deleting completed jobs
- [Multiprocessing] Fixed args mismatch error when passing list of tuples to Pool.map
- [Standalone] Fixed cloud-init script that occasionally fails to set ssh credentials

Fixed
- [Standalone] Avoid deleting the master VM on consume mode

Fixed
- [Core] Fixed lithops.map_reduce() jobs. Sometimes jobs where not finishing
- [Core] Spawn lithops.cleaner only once in the same execution instance
- [Tests] Fix when running 'lithops verify' command
- [CodeEngine] Delete jobruns and configmaps of internal executions
- [k8s] Delete job definitions of internal executions
- [Core] Ensure all temp data is cleaned from storage backend