feat: ck printer

[devtooligan]

NOTE: This pr is based on the martin-printer branch. That pr should be merged first.

DESCRIPTION:

• This pr adds a printer based on Chidamber and Kemerer's complexity metrics and includes related function attributes

OPEN QUESTION:

• Is this too much info? We could limit this to just the CK Metrics (RFC, NOC, DIT, CBO) and move the other "function attribute" metrics (i.e. number of External functions) to the Complexity dashboard. The reason all of this extra info is being reported is because it needs to be calculated to get to the CK Metrics anyways, and I feel like its very helpful -- but maybe it doesn't belong here?

INFO:Printers:
CK complexity metrics

Variables
+------------+-----------------+-----------+------------+
| Contract   | State variables | Constants | Immutables |
+------------+-----------------+-----------+------------+
| IGo        |               0 |         0 |          0 |
| BContract1 |               0 |         0 |          0 |
| BContract2 |               1 |         0 |          0 |
| CContract1 |               2 |         0 |          0 |
| TOTAL      |               3 |         0 |          0 |
+------------+-----------------+-----------+------------+

Function visibility
+------------+--------+----------+----------+---------+
| Contract   | Public | External | Internal | Private |
+------------+--------+----------+----------+---------+
| IGo        |      0 |        1 |        0 |       0 |
| BContract1 |      1 |        0 |        1 |       0 |
| BContract2 |      1 |        0 |        0 |       0 |
| CContract1 |      1 |        0 |        1 |       0 |
| TOTAL      |      3 |        1 |        2 |       0 |
+------------+--------+----------+----------+---------+

State mutability
+------------+----------+------+------+
| Contract   | Mutating | View | Pure |
+------------+----------+------+------+
| IGo        |        1 |    0 |    0 |
| BContract1 |        0 |    0 |    2 |
| BContract2 |        0 |    0 |    1 |
| CContract1 |        2 |    0 |    0 |
| TOTAL      |        3 |    0 |    3 |
+------------+----------+------+------+

External/Public functions with modifiers
+------------+-------------------+----------------------+--------------+
| Contract   | External mutating | No auth or onlyOwner | No modifiers |
+------------+-------------------+----------------------+--------------+
| IGo        |                 1 |                    1 |            1 |
| BContract1 |                 0 |                    0 |            0 |
| BContract2 |                 0 |                    0 |            0 |
| CContract1 |                 1 |                    0 |            0 |
| TOTAL      |                 2 |                    1 |            1 |
+------------+-------------------+----------------------+--------------+

External calls and CK Metrics:
Response For a Class (RFC)
Number of Children (NOC)
Depth of Inheritance Tree (DIT)
Coupling Between Object Classes (CBO)
+------------+-----------+-----+-----+-----+-----+
| Contract   | Ext calls | RFC | NOC | DIT | CBO |
+------------+-----------+-----+-----+-----+-----+
| IGo        |         0 |   1 |   0 |   0 |   1 |
| BContract1 |         0 |   1 |   0 |   0 |   0 |
| BContract2 |         0 |   1 |   0 |   0 |   1 |
| CContract1 |         2 |   3 |   0 |   0 |   2 |
+------------+-----------+-----+-----+-----+-----+

[montyly]

MMh I think we should move this outside of utils/upgradeability

[montyly]

Can we add the return types for all the functions? (use -> None if the function returns nothing)