Adding document anonymizer

[dristysrivastava]

Requirement: To anonymize document snippets in Pebblo report. As Pebblo is considered for environments beyond dev, anonymization will help distribute the report to more app stakeholders.

Issue Link: #224

Note:
To use this function:

from pebblo.entity_classifier.entity_classifier import EntityClassifier

text = <Document text>
entity_classifier_obj = EntityClassifier()
entities, total_count, anonymized_text = entity_classifier_obj.entity_classifier_obj.presidio_entity_classifier_and_anonymizer(text,anonymize_all_entities)
print(f"Entity Group: {entity_groups}")
print(f"Entity Count: {total_entity_count}")
print(f"Anonymized Text: {anonymized_text}")

Example:

text = """
Hello, My name is John. 
My AWS Access Key is: AKIAQIPT4PDORIRTV6PH
"""

Anomyzed Response: 
Hello, My name is  <PERSON>
My AWS Access Key is: <AWS_ACCESS_KEY>

[shreyas-damle]

please add one sample pdf report and/or Local UI screenshots showing anonymized contents.

[dristysrivastava]

please add one sample pdf report and/or Local UI screenshots showing anonymized contents.

Adding report with anonymized document snippet
pebblo_report.pdf