Adds "createField.assertValue". Ensures arguments in "shouldValidateOnMount" and validation resolvers

[kettanaito]

• Closes #299
• Fixes #316
• Partially merges #289

Change log

• Tree-shakes ramda by using babel-plugin-ramda
• Cypress: Tests against running Storybook, instead of shallow rendering a scenario component
• Adds assertValue option for createField to assert the custom value instance of a field (i.e. to know when the value is set in a complex BirthDate component)

Roadmap

• [x] Add integration test for "BirthDate" field validation
• [x] Revert integration tests in the build pipeline. Better broken tests, than no test

[kettanaito]

The following must be corrected:

./cypress/support/commands.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
SyntaxError: /root/root/cypress/support/commands.js: Unexpected token, expected ";" (196:50)

  194 |   { prevSubject: true },
  195 |   (subject, errorText) => {
> 196 |     const wrapper = cy.log('Assert error message')wrap(subject).siblings('.invalid-feedback')
      |                                                   ^
  197 | 
  198 |     return errorText === false
  199 |       ? wrapper.should('not.exist')