Adds support for locale hash

[jerui1]

Please, review this PR after #13

Refactors RandomHelper a little bit.

Creates and use a default OR seeded OR localized OR seededAndLocalized faker, according to given hash.

Adds a Random field to make unit testing easier. (Especially for localizedNonSeeded faker)
Adds a package private constructor for tests.

References

Allow users to specify the locale for fake data #2

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[jimcornmell]

Hi This does not seem to work for me, I've probably screwed up, appologies if I have.

I've done the following:

git clone [email protected]:jerui1/wiremock-faker-extension.git
cd wiremock-faker-extension
gradle build

Added to wiremock, started it and used all the locale variations I can think of:

{{ random 'Address.postcode' seed=1234 locale='en_GB' }}
{{ random 'Address.postcode' seed=1234 locale='en-GB' }}
{{ random 'Address.postcode' seed=1234 locale='GB' }}
{{ random 'Address.postcode' seed=1234 locale='gb' }}
{{ random 'Address.postcode' seed=1234 locale='en' }}

All come back with postcodes which are american format, i.e. 5 digits. I'd expect UK format postcodes, i.e. something like XX12 3XX.

As an example I've used the python standalone faker in scripts and that works something like this, although I can only vouch for the UK postcodes looking authentic:

 $  export LANG=da_DK 
 $  faker -r 3 postcode
8014
7650
5035

 $  export LANG=fr_FR
 $  faker -r 3 postcode
13369
27633
67840

 $  export LANG=ru_RU 
 $  faker -r 3 postcode
280896
469642
566794

 $  export LANG=en_GB 
 $  faker -r 3 postcode
E9 3FY
DE18 7TB
CH3 3ZG