Added WIP shader-phrases, annotations and tooling for shader phrases

resolving is done using the JVM class loader

orx-noise/src/main/kotlin/phrases/NoisePhrases.kt

@@ -0,0 +1,32 @@
+@file:ShaderPhrases(exports = ["hash22","hash21","valueNoise21"])
+package org.openrndr.extra.noise.phrases
+
+import org.openrndr.extra.shaderphrases.annotations.ShaderPhrase
+import org.openrndr.extra.shaderphrases.annotations.ShaderPhrases
+
+@ShaderPhrase(exports = ["hash22"])
+val phraseHash22 = """vec2 hash22(vec2 p) {
+    float n = sin(dot(p, vec2(41, 289)));
+    return fract(vec2(262144, 32768)*n);
+}    
+"""
+
+@ShaderPhrase(exports = ["hash21"])
+val phraseHash21 = "float hash21(vec2 p) { return fract(1e4 * sin(17.0 * p.x + p.y * 0.1) * (0.1 + abs(sin(p.y * 13.0 + p.x)))); }"
+
+@ShaderPhrase(exports = ["valueNoise21"], imports = ["hash21"])
+val phraseValueNoise21 = """
+    
+float noise(vec2 x) {
+    vec2 i = floor(x);
+    vec2 f = fract(x);
+
+    float a = hash21(i);
+    float b = hash21(i + vec2(1.0, 0.0));
+    float c = hash21(i + vec2(0.0, 1.0));
+    float d = hash21(i + vec2(1.0, 1.0));
+
+    vec2 u = f * f * (3.0 - 2.0 * f);
+    return mix(a, b, u.x) + (c - a) * u.y * (1.0 - u.x) + (d - b) * u.x * u.y;
+}   
+""".trimIndent()