vendor dependencies, make some changes to how input is done

vendor/github.com/ebitengine/purego/dlfcn_linux.go

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
+
+package purego
+
+// Source for constants: https://codebrowser.dev/glibc/glibc/bits/dlfcn.h.html
+
+const (
+	RTLD_DEFAULT = 0x00000 // Pseudo-handle for dlsym so search for any loaded symbol
+	RTLD_LAZY    = 0x00001 // Relocations are performed at an implementation-dependent time.
+	RTLD_NOW     = 0x00002 // Relocations are performed when the object is loaded.
+	RTLD_LOCAL   = 0x00000 // All symbols are not made available for relocation processing by other modules.
+	RTLD_GLOBAL  = 0x00100 // All symbols are available for relocation processing of other modules.
+)