Add to make friend assemblies

[nowsprinting]

Creating AssemblyInfo.cs files for friend assemblies

Creates an AssemblyInfo.cs file for each assembly to mark Assembly Definition References as Friend assemblies.
This allows access to internal types and members.

[Copilot]

Pull Request Overview

This PR adds support for creating AssemblyInfo.cs files to configure friend assemblies, enabling access to internal types and members across related assemblies. The implementation generates appropriate InternalsVisibleTo attributes based on the assembly structure.

• Adds AssemblyInfo.cs file generation with InternalsVisibleTo attributes for friend assemblies
• Creates comprehensive tests to verify AssemblyInfo.cs file creation and content
• Updates documentation to reflect the new AssemblyInfo.cs functionality

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
Editor/DoCreateScriptFoldersWithTests.cs	Implements AssemblyInfo.cs generation logic with friend assembly configurations
Tests/Editor/DoCreateScriptFoldersWithTestsTest.cs	Adds tests verifying AssemblyInfo.cs content and InternalsVisibleTo attributes
Tests/Editor/DoCreateScriptFoldersWithTestsTestUnderPackages.cs	Adds tests for AssemblyInfo.cs file existence in package scenarios
README.md	Updates documentation to describe AssemblyInfo.cs functionality and reorganizes sections

Comments suppressed due to low confidence (1)

Tests/Editor/DoCreateScriptFoldersWithTestsTest.cs:1

• The test method name is inconsistent with other test methods. It should be Action_CreatedTestsEditorAssemblyInfoWithInternalsVisibleTo to match the pattern used in other test methods and clarify that it's testing the content, not just creation.

// Copyright (c) 2021-2025 Koji Hasegawa.

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[github-actions]

Code Metrics Report

	master (cc96f7c)	#67 (3e0cfd0)	+/-
Coverage	16.1%	12.8%	-3.3%
Code to Test Ratio	1:1.4	1:1.4	-0.1
Test Execution Time	2m44s	2m36s	-8s

Details

  |                     | master (cc96f7c) | #67 (3e0cfd0) |  +/-  |
  |---------------------|------------------|---------------|-------|
- | Coverage            |            16.1% |         12.8% | -3.3% |
  |   Files             |                4 |             4 |     0 |
  |   Lines             |              130 |           163 |   +33 |
  |   Covered           |               21 |            21 |     0 |
- | Code to Test Ratio  |            1:1.4 |         1:1.4 |  -0.1 |
  |   Code              |              246 |           295 |   +49 |
+ |   Test              |              363 |           427 |   +64 |
+ | Test Execution Time |            2m44s |         2m36s |   -8s |

Code coverage of files in pull request scope (0.0% → 0.0%)

Files	Coverage	+/-	Status
Editor/DoCreateScriptFoldersWithTests.cs	0.0%	0.0%	modified

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Reported by octocov