Messages API support

Adding support for v1.0 of the Vonage Messages API

Adding classes for more APIs, Client class now instantiates API classes so methods can be called consistently

• Moved some client methods into their own classes: account.py, application.py, message_search.py, number_insight.py, numbers.py, short_codes.py, ussd.py
• Deprecated the corresponding client methods. These will be removed in a major release that's coming soon.
• Client now instantiates a class object for each API when it is created, e.g. vonage.Client(key="mykey", secret="mysecret")
  instantiates instances of Account, Sms, NumberInsight etc. These instances can now be called directly from Client, e.g.

client = vonage.Client(key="mykey", secret="mysecret")

print(f"Account balance is: {client.account.get_balance()}")

print("Sending an SMS")
client.sms.send_message(
    "from": "Vonage",
    "to": "SOME_PHONE_NUMBER",
    "text": "Hello from Vonage's SMS API"
)

2.6.4

• Adding default max_retries option to the BasicAuthenticationServer constructor, specifying optional parameters

2.6.3

• Dropped support for Python 3.6 and below
• Now supporting currently supported stable versions of Python, i.e. Python 3.7-3.10
• Internal refactoring and enhancements

v2.5.3

• Minor patches to reflect Vonage namespace changes

v2.5.2

• Support for Independent SMS, Voice and Verify APIs with tests as well as current client methods
• Getters/Setters to extract/rewrite custom attributes
• PSD2 Verification support
• Dropping support for Python 2.7
• Roadmap to better error handling
• Supporting Python 3.8

Application V2 Release

2.4.0

• Application V2 API added under Client.application_v2
• Existing application methods under Client are now deprecated.

v2.1.0

• Added support for get_recording
• Added support for SMS conversion
• Added debug logging for most calls, under the 'nexmo' logger.
• Internal refactoring (affects only private methods.)

v2.0.0

• Drop support for Python 3.3 (in line with the cryptography library we depend upon)
• Ensure timestamp is added the params list if signing requests
• Avoid value injection in signature auth.
• Add support for different hashes for signature generation (thanks @trancee!)
• Tests ported to pytest