Add CLI SDK (#27)

* add cli sdk

* remove .idea

* rename module

* go mod tidy

cli/go.mod

@@ -0,0 +1,5 @@
+module github.com/confluentinc/ccloud-sdk-go-v2/cli
+
+go 1.13
+
+require golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99

cli/v1/README.md

@@ -0,0 +1,134 @@
+# Go API client for v1
+
+API to collect data on CLI commands run while logged in to Confluent Cloud
+
+## Overview
+This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.  By using the [OpenAPI-spec](https://www.openapis.org/) from a remote server, you can easily generate an API client.
+
+- API version: 0.1.0
+- Package version: 1.0.0
+- Build package: org.openapitools.codegen.languages.GoClientCodegen
+For more information, please visit [https://confluent.slack.com/app_redirect?channel=cli-eng](https://confluent.slack.com/app_redirect?channel=cli-eng)
+
+## Installation
+
+Install the following dependencies:
+
+```shell
+go get github.com/stretchr/testify/assert
+go get golang.org/x/oauth2
+go get golang.org/x/net/context
+```
+
+Put the package under your project folder and add the following in import:
+
+```golang
+import sw "./v1"
+```
+
+To use a proxy, set the environment variable `HTTP_PROXY`:
+
+```golang
+os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
+```
+
+## Configuration of Server URL
+
+Default configuration comes with `Servers` field that contains server objects as defined in the OpenAPI specification.
+
+### Select Server Configuration
+
+For using other server than the one defined on index 0 set context value `sw.ContextServerIndex` of type `int`.
+
+```golang
+ctx := context.WithValue(context.Background(), sw.ContextServerIndex, 1)
+```
+
+### Templated Server URL
+
+Templated server URL is formatted using default variables from configuration or from context value `sw.ContextServerVariables` of type `map[string]string`.
+
+```golang
+ctx := context.WithValue(context.Background(), sw.ContextServerVariables, map[string]string{
+	"basePath": "v2",
+})
+```
+
+Note, enum values are always validated and all unused variables are silently ignored.
+
+### URLs Configuration per Operation
+
+Each operation can use different server URL defined using `OperationServers` map in the `Configuration`.
+An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
+Similar rules for overriding default operation server index and variables applies by using `sw.ContextOperationServerIndices` and `sw.ContextOperationServerVariables` context maps.
+
+```
+ctx := context.WithValue(context.Background(), sw.ContextOperationServerIndices, map[string]int{
+	"{classname}Service.{nickname}": 2,
+})
+ctx = context.WithValue(context.Background(), sw.ContextOperationServerVariables, map[string]map[string]string{
+	"{classname}Service.{nickname}": {
+		"port": "8443",
+	},
+})
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *https://api.confluent.cloud*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*UsagesCliV1Api* | [**CreateCliV1Usage**](docs/UsagesCliV1Api.md#createcliv1usage) | **Post** /cli/v1/usages | Create a Usage
+
+
+## Documentation For Models
+
+ - [CliV1Usage](docs/CliV1Usage.md)
+ - [Error](docs/Error.md)
+ - [ErrorSource](docs/ErrorSource.md)
+ - [Failure](docs/Failure.md)
+ - [ListMeta](docs/ListMeta.md)
+ - [ObjectMeta](docs/ObjectMeta.md)
+ - [ObjectReference](docs/ObjectReference.md)
+
+
+## Documentation For Authorization
+
+
+
+### api-key
+
+- **Type**: HTTP basic authentication
+
+Example
+
+```golang
+auth := context.WithValue(context.Background(), sw.ContextBasicAuth, sw.BasicAuth{
+    UserName: "username",
+    Password: "password",
+})
+r, err := client.Service.Operation(auth, args)
+```
+
+
+## Documentation for Utility Methods
+
+Due to the fact that model structure members are all pointers, this package contains
+a number of utility functions to easily obtain pointers to values of basic types.
+Each of these functions takes a value of the given basic type and returns a pointer to it:
+
+* `PtrBool`
+* `PtrInt`
+* `PtrInt32`
+* `PtrInt64`
+* `PtrFloat`
+* `PtrFloat32`
+* `PtrFloat64`
+* `PtrString`
+* `PtrTime`
+
+## Author
+
+[email protected]
+