feat: Implement Flexible Permission Management System

[productdevbook]

close #9

🚀 Permask Library Improvements

🎯 Overview

This PR enhances the Permask library, a flexible permission management system with a fluent API.

✨ Key Features

🔐 Permission Management

• Default Permission Access: Pre-defined permission values (CREATE, READ, UPDATE, DELETE)
• Auto-assignment of permission values: Automatically assigns bit values to permissions when null/undefined
• ALL permission handling: Improved support for granting and checking all permissions

🛠️ Builder Pattern

• PermaskBuilder: Enhanced builder class for creating customized permission systems
• Permission Sets: Define and use named permission sets (VIEWER, EDITOR, MANAGER, etc.)
• Fluent API: Chainable methods for defining permissions, groups, and permission sets

📊 Permission Checking

• Detailed checking: Methods for checking individual or multiple permissions (can, canAll, canAny)
• Permission explanation: Get detailed information about permissions with explain()
• Special checks: Methods like canCreate(), canRead(), canUpdate(), etc.

🔄 String Conversion

• toString: Convert permissions to human-readable format (e.g., "DOCUMENTS:VIEW,EDIT")
• fromString: Parse permission strings back to bitmask values
• Alternative formats: Support for "*" and "ALL" to represent all permissions

🧪 Testing

• Comprehensive test suite covering basic and advanced use cases
• Tests for auto-assignment of permission values
• Tests for permission sets and string conversions

🔍 Technical Details

• Uses bitwise operations for efficient permission storage and checking
• Supports customizable number of access bits (default 5 bits)
• Handles permission groups for contextual access control

[dschewchenko]

@productdevbook I think, we need to revise this PR. Include only what really useful, without breaking utility-first nature(to be tree-shakable and lightweight).

• CRUD access already done
• toString/fromString make as independent function

other functionality is not app-independent(universal enough), so in my opinion is not suitable for permask. Ok? =)