Add Bitwise OR Operator

[ashayas]

This pull request introduces the bitwise OR operator which is complementary to the bitwise AND operator already present

Why:

• The bitwise OR operator is a necessary complement to the existing bitwise AND operator already present in the repository. I followed the conventions and implementation patterns of the bitwise AND operator to ensure consistency and maintainability within the codebase. I wanted this implemented so that it can be updated in ChromaDB

Example Usage:

from pypika import Table, Field, Query

table = Table('example')
field1 = Field('field1')
field2 = Field('field2')

query = Query.from_(table).select(field1.bitwiseor(field2))
print(query)
# Output: SELECT "field1" | "field2" FROM "example"

Testing:

make test [PASS]
make docs.build [PASS]