Release 0.7.0

See #80, release log:

• ee70767 by @rultor: version 0.7.0
• 0ec009a by @rafamizes: refactor!: remove superfluous ...
• 72fe94c by @rafamizes: feat: ReqLen class (#77) Close...
• 9b63850 by @rafamizes: feat: ReqLen class Closes #62
• 96d6815 by @rafamizes: doc(README): fix the url of th...
• b67e236 by @rafamizes: refactor!: optimize the Pair a...
• 8033a6a by @rafamizes: refactor: optimization of clas...
• 8ca0bb2 by @rafamizes: feat: Cep and ReqCep validator...
• 6075a8a by @rafamizes: refactor! rename Len's paramet...
• 1aab19f by @rafamizes: feat!: full impl. of the 'Digi...

Released by Rultor 1.69.1, see build log