VizTracer 1.0.0 Release

• Polished the interface and APIs of C tracer to fully eliminate the middleware _VizTracer
• Utilized __rdtsc() for timestamp when available, reducing the overhead
• Made it possible to align with Unix timestamp at us level
• Optimized import speed so viztracer command can be much faster to invoke
• Allowed custom repr function for function args and return value
• Used sys.monitoring for Python3.12+ for better performance
• Updated the documentation to reflect the current implementation