* Optimize the HyperNova `compute_g`, `compute_Ls` and `to_lcccs` methods

- Optimize the HyperNova `compute_g`, `compute_Ls` and `to_lcccs` methods
- in some tests, increase the size of test matrices to a more real-world size.

| method                | matrix size   | old version seconds | new version seconds |
| --------------------- | ------------- | ------------------- | ------------------- |
| compute_g             | 2^8 x 2^8     | 16.48               | 0.16                |
| compute_g             | 2^9 x 2^9     | 122.62              | 0.51                |
| compute_Ls            | 2^8 x 2^8     | 9.73                | 0.11                |
| compute_Ls            | 2^9 x 2^9     | 67.16               | 0.38                |
| to_lcccs              | 2^8 x 2^8     | 4.56                | 0.21                |
| to_lcccs              | 2^9 x 2^9     | 67.65               | 0.84                |

- Note: 2^16 x 2^16 is the actual size (upperbound) of the circuit,
  which is not represented in the table since it was needing too much
  ram to even be computed.

* Optimize HyperNova's `compute_sigmas_thetas` and `compute_Q`

| method                | matrix size   | old version seconds | new version seconds |
| -------------         | ------------- | ------------------- | ------------------- |
| compute_sigmas_thetas | 2^8 x 2^8     | 12.86               | 0.13                |
| compute_sigmas_thetas | 2^9 x 2^9     | 100.01              | 0.51                |
| compute_Q             | 2^8 x 2^8     | 4.49                | 0.07                |
| compute_Q             | 2^9 x 2^9     | 70.77               | 0.55                |

* optimize LCCCS::check_relation & CCCS::check_relation, and remove unnessary methods after last reimplementations