fixed access modifier issue

Author: yukiny0811

Sources/EasyMetalShaderMacro/EMComputeShader/EMComputeShader+MemberMacro.swift

@@ -125,12 +125,12 @@ extension EMComputeShader: MemberMacro {
 
         let thisDecl1: DeclSyntax =
         """
-        var computePipelineState: MTLComputePipelineState!
+        public var computePipelineState: MTLComputePipelineState!
         """
 
         let thisDecl2: DeclSyntax =
         """
-        var args: [String: EMMetalArgument] = [:]
+        public var args: [String: EMMetalArgument] = [:]
         """
 
         let thisDecl3: DeclSyntax = .init(stringLiteral: ComputeFunctionStrings.initFunc(variableInitStrings: initStringList, gidTypeString: "ushort2"))
@@ -140,7 +140,7 @@ extension EMComputeShader: MemberMacro {
         if !hasInitInImplementation {
             thisDecl4 = 
             """
-            init() {
+            public init() {
                 setup()
             }
             """

Sources/EasyMetalShaderMacro/EMComputeShader3D/EMComputeShader3D+MemberMacro.swift

@@ -125,12 +125,12 @@ extension EMComputeShader3D: MemberMacro {
 
         let thisDecl1: DeclSyntax =
         """
-        var computePipelineState: MTLComputePipelineState!
+        public var computePipelineState: MTLComputePipelineState!
         """
 
         let thisDecl2: DeclSyntax =
         """
-        var args: [String: EMMetalArgument] = [:]
+        public var args: [String: EMMetalArgument] = [:]
         """
 
         let thisDecl3: DeclSyntax = .init(stringLiteral: ComputeFunctionStrings.initFunc(variableInitStrings: initStringList, gidTypeString: "ushort3"))
@@ -140,7 +140,7 @@ extension EMComputeShader3D: MemberMacro {
         if !hasInitInImplementation {
             thisDecl4 = 
             """
-            init() {
+            public init() {
                 setup()
             }
             """

Sources/EasyMetalShaderMacro/EMRenderShader/EMRenderShader+MemberMacro.swift

@@ -136,12 +136,12 @@ extension EMRenderShader: MemberMacro {
 
         let thisDecl1: DeclSyntax =
         """
-        var renderPipelineState: MTLRenderPipelineState!
+        public var renderPipelineState: MTLRenderPipelineState!
         """
 
         let thisDecl2: DeclSyntax =
         """
-        var args: [String: EMMetalArgument] = [:]
+        public var args: [String: EMMetalArgument] = [:]
         """
 
         let thisDecl3: DeclSyntax = .init(stringLiteral: RenderFunctionStrings.initFunc(variableInitStrings: initStringList))
@@ -151,7 +151,7 @@ extension EMRenderShader: MemberMacro {
         if !hasInitInImplementation {
             thisDecl4 =
             """
-            init(targetPixelFormat: MTLPixelFormat) {
+            public init(targetPixelFormat: MTLPixelFormat) {
                 setup(targetPixelFormat: targetPixelFormat)
             }
             """