Rendering and other fixes

What's Changed

• make colors a class and refactor by @YeffyCodeGit in #16
• add color gradients
• fix bugs and refactor

Full Changelog: v1.4.3...v1.5.4

Install

Gradle:

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
        maven {  url "https://dl.cloudsmith.io/public/electron-studio/jaylib/maven/" }
    }
}

dependencies {
    implementation 'uk.co.electronstudio.jaylib:jaylib:4.0.+'
    implementation 'uk.co.electronstudio.jaylib:jaylib-natives-windows-x86_64:4.0.+'
    implementation 'uk.co.electronstudio.jaylib:jaylib-natives-macosx-x86_64:4.0.+'
    implementation 'uk.co.electronstudio.jaylib:jaylib-natives-linux-x86_64:4.0.+'
    implementation 'com.github.OrbitalEngine:Orbital:1.5.4'
}

Maven:

<repositories>
        <repository>
            <id>electron-studio-jaylib</id>
            <url>https://dl.cloudsmith.io/public/electron-studio/jaylib/maven/</url>
            <releases>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
            </releases>
            <snapshots>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
            </snapshots>
        </repository>

                 <repository>
		    <id>jitpack.io</id>
		    <url>https://jitpack.io</url>
		</repository>
</repositories>

<dependencies>
        <dependency>
            <groupId>uk.co.electronstudio.jaylib</groupId>
            <artifactId>jaylib</artifactId>
            <version>3.7.0</version>
        </dependency>


        <dependency>
            <groupId>uk.co.electronstudio.jaylib</groupId>
            <artifactId>jaylib-natives-windows-x86_64</artifactId>
            <version>3.7.0</version>
        </dependency>


        <dependency>
            <groupId>uk.co.electronstudio.jaylib</groupId>
            <artifactId>jaylib-natives-macosx-x86_64</artifactId>
            <version>3.7.0</version>
        </dependency>


        <dependency>
            <groupId>uk.co.electronstudio.jaylib</groupId>
            <artifactId>jaylib-natives-linux-x86_64</artifactId>
            <version>3.7.0</version>
        </dependency>

     <dependency>
	    <groupId>com.github.OrbitalEngine</groupId>
	    <artifactId>Orbital</artifactId>
	    <version>1.5.4</version>
	</dependency>
</dependencies>