docs: add the BUILD.md file for horusec-cli (ZupIT#857)

Signed-off-by: Henrique Rodrigues <[email protected]>

BUILD.md

@@ -0,0 +1,142 @@
+# **BUILD**
+
+## **Table of contents** 
+### 1. [**About**](#about)
+### 2. [**Environment**](#environment)
+### 3. [**Development**](#development)
+>#### 3.1. [**Install and Run**](#install-and-run)
+>#### 3.2. [**Style Guide**](#style-guide)
+>#### 3.3. [**Tests**](#security)
+>##### 3.3.1 [**E2E**](#e2e)
+>##### 3.3.2 [**Unitary Tests**](#unitary-tests)
+>#### 3.4 [**Security**](#security)       
+### 4. [**Production**](#production)
+
+
+## **About**
+The **BUILD.md** is a file to check the environment and build specifications of **horusec-cli** project.
+
+
+## **Environment**
+
+- [**Golang**: ^1.17.X](https://go.dev/dl/)
+- [**GNU Make**: ^4.2.X](https://www.gnu.org/software/make/)
+- [**Git**: ^2.25.X](https://git-scm.com/)
+- [**Docker**: ^19.3.X](https://docs.docker.com/get-docker/)
+
+
+## **Development**
+
+Use a command-line interface (CLI) of your choice to run the following commands to download and install the dependencies.
+
+### **Install and Run**
+
+From the root of the project, run the command below to download the dependencies:
+
+```go
+go mod download
+```
+
+The command below build the Horusec cli for development:
+
+```bash
+make build-dev
+```
+After build successful you can execute running:
+
+```bash
+./horusec
+```
+Or on Windows:
+
+```bash
+horusec
+```
+
+### **Style Guide**
+
+There is a pattern for the source code and the [**golangci-lint**](https://golangci-lint.run) tool is used as an aggregator to the Golang's linter.
+You can check lint through the `make` command, see it below:
+
+```bash
+make lint
+```
+
+The project also has a dependency import stardard, and the command below organizes your code in the stardard definied:
+
+```bash
+make format
+```
+
+All project files must have the [**license header**](./copyright.txt). To check if all files are in agreement, run the command:
+
+```bash
+make license
+```
+
+If you need to add the license in any file, the command below inserts it in all files that do not have it:
+
+```bash
+make license-fix
+```
+
+### **Tests**
+
+The source code has two test segments, E2E and unitary test.
+
+#### **E2E**
+
+The e2e tests were writen with the packages:
+
+- [**Ginkgo**](https://onsi.github.io/ginkgo/)
+- [**Gomega**](https://onsi.github.io/gomega/)
+
+You can run the tests by the command below:
+
+```bash
+make test-e2e
+```
+
+#### **Unitary Tests**
+
+The unit tests were written with the [**Golang standard**](https://pkg.go.dev/testing) package and some mock and assert snippets, we used the [**testify**](https://github.com/stretchr/testify). You can run the tests using the command below:
+
+```bash
+make test
+```
+
+To check test coverage, run the command below:
+
+```bash
+make coverage
+```
+
+### **Security**
+
+[**Horusec**](https://horusec.io/site/) uses the latest version to keep our source code safe. You can verify using the command below:
+
+```bash
+make security
+```
+
+## **Production**
+
+Run the commands below in your project's root according to your Operating System to create Horusec's binary:
+
+- **Windows**
+
+  ```bash
+  make build-install-cli-windows
+  ```
+
+- **Linux**
+
+  ```bash
+  make build-install-cli-linux
+  ```
+
+- **MacOs**
+
+  ```bash
+  make build-install-cli-darwin
+  ```