Fixed coding standards.

Coding standards must be follow PSR-1 and PSR-2.

These are the errors that was not fixed yet

````
FILE: Respect/Validation/Exceptions/AtLeastException.php
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FOUND 2 ERROR(S) AFFECTING 2 LINE(S)
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 11 | ERROR | Line exceeds maximum limit of 120 characters; contains 130
    |       | characters
 15 | ERROR | Line exceeds maximum limit of 120 characters; contains 134
    |       | characters
--------------------------------------------------------------------------------


FILE: Respect/Validation/Rules/Cnpj.php
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FOUND 2 ERROR(S) AFFECTING 2 LINE(S)
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 18 | ERROR | Inline control structures are not allowed
 24 | ERROR | Inline control structures are not allowed
--------------------------------------------------------------------------------


FILE: Respect/Validation/Rules/Cpf.php
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FOUND 2 ERROR(S) AFFECTING 2 LINE(S)
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 20 | ERROR | Inline control structures are not allowed
 26 | ERROR | Inline control structures are not allowed
--------------------------------------------------------------------------------


FILE: Respect/Validation/Validator.php
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FOUND 2 ERROR(S) AFFECTING 2 LINE(S)
--------------------------------------------------------------------------------
 18 | ERROR | Line exceeds maximum limit of 120 characters; contains 124
    |       | characters
 47 | ERROR | Line exceeds maximum limit of 120 characters; contains 127
    |       | characters
--------------------------------------------------------------------------------
````