Replace the C++ implementation with the Rust port

The Rust port (formerly gipfel-rs) is now the official successor to the
FLTK/GSL C++ code base. This squashes the port into a single commit and
removes the C++ sources (they remain in the git history below).

Layout:
  crates/gipfel-core  headless core: hills, panorama geometry, projections
                      (maxima-generated derivatives), pure-Rust LM fit,
                      gipfel: JPEG comment + EXIF I/O, profiles, stitching
  crates/gipfel-cli   command-line tools (export, info, stitch, profiles)
  crates/gipfel-app   Cosmic DE (libcosmic) GUI, binary name `gipfel`
  codegen/            maxima scripts + regen.sh for the projection code
  tests/              golden files + C++ reference harnesses (historical)

The original README is kept for now; it will be updated to describe the
Rust build. gipfel.dat, AUTHORS, ChangeLog and NEWS are unchanged.

1 files changed, 0 insertions, 42 deletions

diff --git a/src/Fl_Search_Chooser.H b/src/Fl_Search_Chooser.H
deleted file mode 100644
index 37ed431..0000000
--- a/src/Fl_Search_Chooser.H
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright 2006-2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
-//
-// This software may be used and distributed according to the terms
-// of the GNU General Public License, incorporated herein by reference.
-
-#ifndef FL_SEARCH_CHOOSER_H
-#define FL_SEARCH_CHOOSER_H
-
-#include <FL/Fl_Window.H>
-#include <FL/Fl_Select_Browser.H>
-#include <FL/Fl_Input.H>
-
-class Fl_Search_Browser : public Fl_Select_Browser {
-	private:
-		int find_prefix(const char *p, int s, int e);
-
-	public:
-		Fl_Search_Browser(int X, int Y, int W, int H, const char *c):Fl_Select_Browser(X,Y,W,H,c){};
-
-		int find_prefix(const char *p);
-};
-
-class Fl_Search_Chooser : public Fl_Window {
-	private:
-		Fl_Search_Browser *sb;
-		int visible_focus;
-	
-		static void input_cb(Fl_Input* in, void*c);	
-		static void ok_cb(Fl_Input* in, void*c);	
-		static void cancel_cb(Fl_Input* in, void*c);	
-
-	public:
-		Fl_Search_Chooser(const char *title);
-
-		void close();
-		void add(const char *t, void *d);
-		void *data();
-		int handle(int event);
-};
-
-#endif