Change impact

TASK: Change impact analysis.

Compare revision A and revision B of a wire list. Wires are matched by id. Report:
- added: ids in B but not A; removed: ids in A but not B;
- modified: ids in both whose attributes differ, with the list of fields that changed (fields are from, to, gauge, color, harness);
- impactedHarnesses: every harness that any added, removed or modified wire belongs to, in EITHER revision;
- impactedConnectors: every connector (the part of an end before the "-") at either end of any added, removed or modified wire, in EITHER revision.

Revision A:
[
  {"id":"W1001","from":"C1-5","to":"C4-4","gauge":18,"color":"VT","harness":"HN-101"},
  {"id":"W1002","from":"C3-1","to":"C3-15","gauge":22,"color":"GY","harness":"HN-101"},
  {"id":"W1003","from":"C1-1","to":"C3-19","gauge":16,"color":"BK","harness":"HN-100"},
  {"id":"W1004","from":"C3-10","to":"C3-18","gauge":18,"color":"BU","harness":"HN-100"},
  {"id":"W1005","from":"C3-20","to":"C3-7","gauge":22,"color":"OG","harness":"HN-100"},
  {"id":"W1006","from":"C1-11","to":"C2-6","gauge":16,"color":"GY","harness":"HN-101"},
  {"id":"W1007","from":"C1-12","to":"C2-10","gauge":20,"color":"RD","harness":"HN-101"},
  {"id":"W1008","from":"C2-13","to":"C3-12","gauge":22,"color":"YE","harness":"HN-101"},
  {"id":"W1009","from":"C1-11","to":"C3-7","gauge":22,"color":"RD","harness":"HN-100"},
  {"id":"W1010","from":"C2-20","to":"C1-10","gauge":20,"color":"RD","harness":"HN-101"},
  {"id":"W1011","from":"C2-16","to":"C1-1","gauge":16,"color":"VT","harness":"HN-101"},
  {"id":"W1012","from":"C1-15","to":"C2-1","gauge":22,"color":"GY","harness":"HN-101"},
  {"id":"W1013","from":"C3-12","to":"C2-4","gauge":16,"color":"YE","harness":"HN-101"},
  {"id":"W1014","from":"C1-3","to":"C2-13","gauge":18,"color":"YE","harness":"HN-100"},
  {"id":"W1015","from":"C2-10","to":"C3-13","gauge":20,"color":"OG","harness":"HN-100"}
]

Revision B:
[
  {"id":"W1002","from":"C3-1","to":"C3-15","gauge":22,"color":"GY","harness":"HN-101"},
  {"id":"W1006","from":"C1-11","to":"C2-6","gauge":16,"color":"BN","harness":"HN-101"},
  {"id":"W1001","from":"C1-5","to":"C4-4","gauge":18,"color":"VT","harness":"HN-101"},
  {"id":"W1009","from":"C1-11","to":"C3-7","gauge":22,"color":"RD","harness":"HN-100"},
  {"id":"W1005","from":"C3-20","to":"C3-7","gauge":22,"color":"OG","harness":"HN-100"},
  {"id":"W1004","from":"C3-10","to":"C3-18","gauge":18,"color":"BU","harness":"HN-100"},
  {"id":"W1008","from":"C2-13","to":"C3-12","gauge":20,"color":"OG","harness":"HN-101"},
  {"id":"W1015","from":"C2-10","to":"C3-13","gauge":20,"color":"OG","harness":"HN-100"},
  {"id":"W2002","from":"C1-4","to":"C2-17","gauge":20,"color":"BU","harness":"HN-100"},
  {"id":"W2001","from":"C4-9","to":"C1-17","gauge":16,"color":"BU","harness":"HN-100"},
  {"id":"W1003","from":"C1-1","to":"C3-19","gauge":16,"color":"BK","harness":"HN-100"},
  {"id":"W1007","from":"C1-12","to":"C2-10","gauge":20,"color":"RD","harness":"HN-101"},
  {"id":"W1012","from":"C1-15","to":"C2-1","gauge":22,"color":"GY","harness":"HN-101"},
  {"id":"W1013","from":"C3-12","to":"C2-4","gauge":16,"color":"YE","harness":"HN-101"},
  {"id":"W1014","from":"C1-3","to":"C2-13","gauge":18,"color":"YE","harness":"HN-100"}
]

Output format (JSON, exactly these keys):
```json
{
 "added": [
  "W2001"
 ],
 "removed": [
  "W1004"
 ],
 "modified": [
  {
   "id": "W1010",
   "fields": [
    "gauge",
    "color"
   ]
  }
 ],
 "impactedHarnesses": [
  "HN-100"
 ],
 "impactedConnectors": [
  "C3",
  "C7"
 ]
}
```