Added support for require-pragma option (resolves #573)

[yannick-paz]

What changed with this PR:

Added support for the require-pragma option

Example

// Input
/**
 * @prettier
 */
public class Example { private int test=-1;}

// Output
/**
 * @prettier
 */
public class Example {
  private int test = -1;
}

// Input
public class Example { private int test=-1;}

// Output
public class Example { private int test=-1;}

Relative issues or prs:

#573

[CLAassistant]

All committers have signed the CLA.

[clementdessoude]

Hi @yannick-paz ! Thank you for submitting this PR, it is very welcome ! And sorry for the delay in the review :/

It looks great, would it be possible for you to sign the Contributor Licence Agreement ? It is needed for all contributions in any JHipster project.

[yannick-paz]

Hey @clementdessoude, thanks for reviewing!
I did sign the CLA but it doesn't seem to be reflected in the PR.
Not sure what I'm missing but if you have a recommended browser or browser settings that I should try (e.g. incognito mode) I'm all ears!

[pascalgrimaud]

@yannick-paz : it's because you commit with this account https://github.com/livemrgreen so it doesnt match

[yannick-paz]

@pascalgrimaud good catch, fixed now :)