Add various scripts and JSON plans for Ghidra project

- Introduced `seg043_boundary_repair.json` to manage function boundaries in segment 043.
- Created `read_file.py` for reading and printing file content size.
- Added `resolve_bb4f.py` to resolve specific function call targets.
- Implemented `resolve_top_targets.py` to find resolved NE targets for top-called wrapper functions.
- Added `script_contents.txt` to summarize NE relocation far calls.
- Updated `tier4_ghidra.txt`, `tier4_ghidra_check.txt`, `tier4_output.txt`, and `tier4_result.txt` with function call statistics.
- Created `tier5_errors.txt` for error logging and `tier5_output.txt` for additional function call statistics.
- Established `tools` directory with helper scripts for the Ghidra project, including CLI and common functionalities.
- Implemented command-line interface in `cli.py` for various project operations.
- Added `common.py` for shared functions and configurations across tools.
- Introduced `validate_fixups.py` to validate NE relocation fixups against known addresses.

pyghidra_plans/seg043_boundary_repair.json

@@ -0,0 +1,44 @@
+{
+  "transaction": "Repair seg043 boundaries around 0007:5a90",
+  "remove_functions": [
+    "0007:5b6f"
+  ],
+  "create_functions": [
+    {
+      "entry": "0007:5a90",
+      "name": "seg043_func_0090",
+      "body_start": "0007:5a90",
+      "body_end": "0007:5b79",
+      "comment": "Recovered from standalone seg043 boundary scan: true start at seg043:0090, body spans seg043:0090..0179.",
+      "comment_type": "plate"
+    },
+    {
+      "entry": "0007:5b7a",
+      "name": "seg043_func_017a",
+      "body_start": "0007:5b7a",
+      "body_end": "0007:5c1b",
+      "comment": "Recovered from standalone seg043 boundary scan: second prologue at seg043:017a, body spans seg043:017a..021b.",
+      "comment_type": "plate"
+    },
+    {
+      "entry": "0007:5c1c",
+      "name": "seg043_func_021c",
+      "body_start": "0007:5c1c",
+      "body_end": "0007:5c80",
+      "comment": "Recovered from standalone seg043 boundary scan: third prologue at seg043:021c, body spans seg043:021c..0280.",
+      "comment_type": "plate"
+    }
+  ],
+  "comments": [
+    {
+      "address": "0007:5b6f",
+      "text": "Old auto-created split overlaps the earlier seg043:0090..0179 routine and should not be treated as a real entrypoint.",
+      "type": "plate"
+    }
+  ],
+  "assert_functions": [
+    "0007:5a90",
+    "0007:5b7a",
+    "0007:5c1c"
+  ]
+}