New refactoring - Remove reverse expressions

[JnRouvignac]

Example 1

Code to refactor:

if (b) {
} else if (!b) {
}

Refactored code:

if (b) {
} else {
}

Example 2

Code to refactor:

if (b) {
} else if (!b && c) {
}

Refactored code:

if (b) {
} else if (c) {
}

Example 3

Code to refactor:

if (b || (!b && c)) {
}

Refactored code:

if (b || c) {
}

Example 4

Code to refactor:

boolean bool = b || (!b && c);

Refactored code:

boolean bool = b || c;

Etc.

[JnRouvignac]

It might depend on issue #32

[JnRouvignac]

It is certainly part of a larger issue which consists of removing duplicate tests.