Add fuzzer executions as standard tests in parameterized tests

[sofurihafe]

Description

Fuzzing process doesn't know anything about mocking taking place, so it was decided to substitute their parameterized tests to standard ones in parameterized test generation mode.
Also, the PR contains some refactoring.

Fixes #1137

Type of Change

• Refactoring (typos and non-functional changes)
• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Automated Testing

UtBot samples.

Manual Scenario

Generate a parameterized test for the following code:

public int complexCompare(int a, int b) {
    int c = 11;
    if ((a < b) && (b < c)) {
        return 0;
    }
    if ((a < b) && (b > c)) {
        return 1;
    }
    if ((a == b) && (b == c)) {
        return 3;
    }
    return 6;
}

Verify that there are a parameterized test with its data providers and some standard tests for fuzzed executions.

[amandelpie]

Something strange, changed the logic of clustering in the apropriate place