Introduction of some wrappers/decorators.

[funilrys]

This patch fix ##21

What has been done?

1. Added the healthcheck/wrappers.py file/submodule.
2. Added the wrappers.add_check_to wrapper.
3. Added the wrappers.add_section_to wrapper.
4. Increased the version number into setup.py.

About wrappers.add_check_to?

As I do not want to create a global variable, or a unify the way to
refer to the HealthCheck class, I made it clear that it is needed
as a reference. If it's not the intended behavior, let me know.

Note: It raises an exception if it gets an input class which is not
HealthCheck.

About wrappers.add_section_to?

As I do not want to create a global variable, or unify the way we
refer to HealthCheck or EnvironmentDump, I made it clear that
one of them is needed. The second argument is the name of the section
(nothing new).

Note: It raises an exception if it gets an input class which is not
HealthCheck or EnvironmentDump.

What did I used to locally test?

from flask import Flask
from healthcheck import EnvironmentDump, HealthCheck, add_check_to, add_section_to

app = Flask(__name__)

health = HealthCheck()
envdump = EnvironmentDump()


# add your own check function to the healthcheck
@add_check_to(health)
def redis_available():
    client = _redis_client()
    info = client.info()
    return True, "redis ok"


# add your own data to the environment dump
@add_section_to(envdump, "application")
def application_data():
    return {
        "maintainer": "Luis Fernando Gomes",
        "git_repo": "https://github.com/ateliedocodigo/py-healthcheck",
    }


# Add a flask route to expose information
app.add_url_rule("/healthcheck", "healthcheck", view_func=lambda: health.run())
app.add_url_rule("/environment", "environment", view_func=lambda: envdump.run())

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Hi there, I'm a bit late to the party but here is by #hacktoberfest contribution 😉

Cheers,
Nissar