Complete rename

ReadMe.md

@@ -4,7 +4,7 @@ Manually tweaked, auto generated [raylib](https://github.com/raysan5/raylib) bin
 ## Example
 Basically we can copy the default example with some minor changes:
 ```zig
-usingnamespace @import("rayzig.zig"); // Import WIP
+usingnamespace @import("raylib-zig.zig"); // Import WIP
 
 pub fn main() anyerror!void
 {

build.zig

@@ -10,7 +10,7 @@ const Builder = @import("std").build.Builder;
 pub fn build(b: *Builder) void
 {
     const mode = b.standardReleaseOptions();
-    const lib = b.addStaticLibrary("Rayzig", "lib/rayzig.zig");
+    const lib = b.addStaticLibrary("raylib-zig", "lib/raylib-zig.zig");
     lib.setBuildMode(mode);
     lib.linkSystemLibrary("raylib");
     lib.install();

examples/core/BasicWindow.zig

@@ -5,7 +5,7 @@
 // Date: 2020-02-15
 //
 
-usingnamespace @import("rayzig.zig");
+usingnamespace @import("raylib-zig.zig");
 
 pub fn main() anyerror!void
 {

lib/raylib-zig-math.zig

@@ -5,7 +5,7 @@
 // Date: 2020-02-15
 //
 
-usingnamespace @import("rayzig.zig");
+usingnamespace @import("raylib-zig.zig");
 
 pub const float3 = extern struct {
     v: [3]f32,