Template loading improvements

[ehsandeep]

Please describe your feature request:

Follow-up ticket for https://github.com/projectdiscovery/nuclei/pull/2614

• [ ] Documentation for automatic input handling
• [ ] Template clustering information improvement (stdout - disable when not used)
• [ ] Loaded template information enhancement

[INF] Templates loaded for scan: 100 [HTTP: 44] [DNS: 43] [SSL: 20] [TCP: 30]