This modifies the structure of the suite to allow us to more easily
identify and compare the algorithms' performance for each operation.

Transforming the `aggregate` report from:

```sh
+--------------+-------------------+-----+------+-----+----------+----------+--------+
| benchmark    | subject           | set | revs | its | mem_peak | mode     | rstdev |
+--------------+-------------------+-----+------+-----+----------+----------+--------+
| Sha256Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 2.655ms  | ±0.17% |
| Sha256Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 1.329ms  | ±0.36% |
| Sha384Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 2.656ms  | ±0.24% |
| Sha384Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 1.334ms  | ±0.21% |
| Sha512Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 2.662ms  | ±0.15% |
| Sha512Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 1.335ms  | ±0.20% |
| Sha256Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 2.988μs  | ±1.78% |
| Sha256Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 3.131μs  | ±6.67% |
| Sha384Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 3.345μs  | ±1.97% |
| Sha384Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 3.485μs  | ±1.34% |
| Sha512Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 3.381μs  | ±7.22% |
| Sha512Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 3.505μs  | ±0.46% |
| EddsaBench   | benchSignature    |     | 100  | 5   | 4.542mb  | 30.035μs | ±0.89% |
| EddsaBench   | benchVerification |     | 100  | 5   | 4.543mb  | 73.330μs | ±0.25% |
| Blake2bBench | benchSignature    |     | 100  | 5   | 4.542mb  | 0.770μs  | ±0.00% |
| Blake2bBench | benchVerification |     | 100  | 5   | 4.543mb  | 0.870μs  | ±0.56% |
| Sha256Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 1.387ms  | ±0.37% |
| Sha256Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 1.407ms  | ±0.15% |
| Sha384Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 2.484ms  | ±0.24% |
| Sha384Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 2.264ms  | ±0.30% |
| Sha512Bench  | benchSignature    |     | 100  | 5   | 4.543mb  | 1.772ms  | ±0.41% |
| Sha512Bench  | benchVerification |     | 100  | 5   | 4.543mb  | 2.083ms  | ±0.04% |
+--------------+-------------------+-----+------+-----+----------+----------+--------+
```

Into:

```sh
+----------------------+---------+---------+------+-----+----------+-----------+---------+
| benchmark            | subject | set     | revs | its | mem_peak | mode      | rstdev  |
+----------------------+---------+---------+------+-----+----------+-----------+---------+
| createsignaturebench | hmac    | hs256   | 100  | 5   | 1.522mb  | 1.762μs   | ±20.24% |
| createsignaturebench | hmac    | hs384   | 100  | 5   | 1.522mb  | 1.997μs   | ±20.96% |
| createsignaturebench | hmac    | hs512   | 100  | 5   | 1.522mb  | 1.986μs   | ±18.27% |
| createsignaturebench | rsa     | rs256   | 100  | 5   | 1.522mb  | 1.184ms   | ±1.33%  |
| createsignaturebench | rsa     | rs384   | 100  | 5   | 1.522mb  | 1.186ms   | ±1.01%  |
| createsignaturebench | rsa     | rs512   | 100  | 5   | 1.522mb  | 1.195ms   | ±0.73%  |
| createsignaturebench | ecdsa   | es256   | 100  | 5   | 1.522mb  | 434.401μs | ±1.95%  |
| createsignaturebench | ecdsa   | es384   | 100  | 5   | 1.522mb  | 1.110ms   | ±0.49%  |
| createsignaturebench | ecdsa   | es512   | 100  | 5   | 1.522mb  | 683.722μs | ±1.33%  |
| createsignaturebench | blake2b | blake2b | 100  | 5   | 1.522mb  | 0.451μs   | ±23.04% |
| verifysignaturebench | hmac    | hs256   | 100  | 5   | 1.522mb  | 1.829μs   | ±1.28%  |
| verifysignaturebench | hmac    | hs384   | 100  | 5   | 1.522mb  | 2.072μs   | ±10.81% |
| verifysignaturebench | hmac    | hs512   | 100  | 5   | 1.522mb  | 2.070μs   | ±1.78%  |
| verifysignaturebench | rsa     | rs256   | 100  | 5   | 1.522mb  | 407.624μs | ±0.62%  |
| verifysignaturebench | rsa     | rs384   | 100  | 5   | 1.522mb  | 407.269μs | ±1.75%  |
| verifysignaturebench | rsa     | rs512   | 100  | 5   | 1.522mb  | 408.983μs | ±1.20%  |
| verifysignaturebench | ecdsa   | es256   | 100  | 5   | 1.522mb  | 448.420μs | ±0.87%  |
| verifysignaturebench | ecdsa   | es384   | 100  | 5   | 1.522mb  | 957.291μs | ±2.92%  |
| verifysignaturebench | ecdsa   | es512   | 100  | 5   | 1.522mb  | 889.006μs | ±1.09%  |
| verifysignaturebench | blake2b | blake2b | 100  | 5   | 1.522mb  | 0.520μs   | ±2.43%  |
+----------------------+---------+---------+------+-----+----------+-----------+---------+
```

Also allowing us to filter for groups (`symmetric`, `asymmetric`,
`hmac`, `rsa`, `ecdsa`, and `blake2b`).

Signed-off-by: Luís Cobucci <[email protected]>