[Feature-Request] Support for Quick scanning

**Additional context**
Currently, all of the scans does a deep scanning by walking over entire filesystem everytime user scans. Which is required for the first time but becomes overkill in subsequent scans. Major problem here is time taken by scans.

**Work Items**
Add a ways to perform quick scans for all t+n scans (n >0, t=time).

- [ ] Malware Scan
- [ ] Vulnerability Scan
- [ ] Secret Scan

**Components/Services**

- [x] UI/Frontend
- [x] API/Backend
- [x] Agent
- [ ] Deployment/YAMLs
- [ ] CI/CD Integration
- [ ] Other (specify)

**Additional context**
Add any other context or screenshots about the feature request here.