Adding reverseOrg string formatter

[TonioGela]

I added a string formatter with an unhappy name (naming is not my best skill) that tokenizes a string using the '.' character and reverses the order of the tokens.
The use case I had in mind is the organization vs organizationName keys that a lot of times (at least for me) are simply derivable one from the other, eg. organizationName := "github.com" and organization := "com.github"
I added a property based test and updated the english documentation.

[TonioGela]

I add that if the general idea of this string formatter is approved it makes sense to me to compose it with other formatters like the lowercasing one in order to be able to perform transformations like Github.com to com.github

[TonioGela]

Updated according to comments

[eed3si9n]

Thanks!

[TonioGela]

It seems that the failure is due to a flaky property test

[info] ! Format.formatLowercase: Falsified after 0 passed tests.
[info] > ARG_0: ""
[info] > ARG_1: ""
[info] > ARG_2: ""
[info] > ARG_0_ORIGINAL: "i"
[Info] > ARG_1_ORIGINAL: "K"
[info] > ARG_2_ORIGINAL: "³"

that doesn't seem to be related to this PR.
I'll take a look at it in a separate issue.

[eed3si9n]

Yea. I reran the test and it worked.