feat(core): include development, test and production dataSource configuration

[jamesfredley]

Include development, test and production dataSource configuration in generated application.yml

Normally this would be part of a minor release, but given that it was lost between 5.3.x and 6.0.0 it is more of a fix than a feature.

The goal is to match the configuration from Grails 5.3.6:

dataSource:
  driverClassName: org.h2.Driver
  username: sa
  password: ''
  pooled: true
  jmxExport: true
environments:
  development:
    dataSource:
      dbCreate: create-drop
      url: jdbc:h2:mem:devDb;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
  test:
    dataSource:
      dbCreate: update
      url: jdbc:h2:mem:testDb;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
  production:
    dataSource:
      dbCreate: none
      url: jdbc:h2:./prodDb;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
      properties:
        jmxEnabled: true
        initialSize: 5
        maxActive: 50
        minIdle: 5
        maxIdle: 25
        maxWait: 10000
        maxAge: 600000
        timeBetweenEvictionRunsMillis: 5000
        minEvictableIdleTimeMillis: 60000
        validationQuery: SELECT 1
        validationQueryTimeout: 3
        validationInterval: 15000
        testOnBorrow: true
        testWhileIdle: true
        testOnReturn: false
        jdbcInterceptors: ConnectionState
        defaultTransactionIsolation: 2

[fernando88to]

I'm glad this feature is coming back.

[matrei]

Looks good!