Swap 3250 post dataset with explicit pid

[martin-trajanovski]

Description

This PR aims to add the feature of creating datasets with explicit PID. There are few environmental variables introduced here and their purpose is:

• CREATE_DATASET_WITH_PID_GROUPS, create_dataset_with_pid_groups
• DATASET_CREATION_VALIDATION_ENABLED, dataset_creation_validation_enabled
• DATASET_CREATION_VALIDATION_REGEX, dataset_creation_validation_regex

As a user:

If I belong to a group that is listed as admin group (ADMIN_GROUPS), I can create a dataset with explicit pid
if I belong to a group that is listed in CREATE_DATASET_WITH_PID_GROUPS, I can create a dataset with explicit pid
if I belong to a group that is listed in CREATE_DATASET_GROUPS, I can create a dataset without pid. PID is assigned by the system

In usecase 1 and 2, if pid is not provided, the system automatically assigned a uuid v4 as dataset pid.
In use case 3, pid is automatically assigned as a uuid v4.

When pid is explicitly provided, the system should check that it is unique in the database.
If DATASET_CREATION_VALIDATION_ENABLED is set to TRUE, the system should validate the pid provided using the regex provided in DATASET_CREATION_VALIDATION_REGEX.

These configuration options should have the following default values:

CREATE_DATASET_GROUPS = "all" 
CREATE_DATASET_WITH_PID_GROUPS = "" 
DATASET_CREATION_VALIDATION_ENABLED = true 
DATASET_CREATION_VALIDATION_REGEX = "^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$"  

Motivation

There was no option to create dataset with some explicit PID that is not generated by the system.

Fixes:

• https://jira.esss.lu.se/browse/SWAP-3250

Changes:

• changes made

Tests included/Docs Updated?

• Included for each change/fix?
• Passing? (Merge will not be approved unless this is checked)
• Docs updated?
• New packages used/requires npm install?
• Toggle added for new features?