Add pytest plugin to suppress web3 activation order in pytest

[darwintree]

deploy_hash = construct_c.constructor(
os.environ["NAME"],
os.environ["SYMBOL"],
# c_w3.cfx.contract(name="CrossSpaceCall").address
'CFXTEST:TYPE.BUILTIN:AAEJUAAAAAAAAAAAAAAAAAAAAAAAAAAAA2EAEG85P5',
).transact()

---

value = 'CFXTEST:TYPE.BUILTIN:AAEJUAAAAAAAAAAAAAAAAAAAAAAAAAAAA2EAEG85P5'

def validate_address(value: Any) -> None:
    """
    Helper function for validating an address
    """
    if is_not_address_string(value):
        if not is_valid_ens_name(value):

          raise InvalidAddress(f"ENS name: '{value}' is invalid.")

E web3.exceptions.InvalidAddress: ENS name: 'CFXTEST:TYPE.BUILTIN:AAEJUAAAAAAAAAAAAAAAAAAAAAAAAAAAA2EAEG85P5' is invalid.

[darwintree]

Add pytest.ini in test root directory

[pytest]
addopts = -p no:pytest_ethereum