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, 43 deletions

diff --git a/src/choose_hill.cxx b/src/choose_hill.cxx
deleted file mode 100644
index 48e44d5..0000000
--- a/src/choose_hill.cxx
+++ /dev/null
@@ -1,43 +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.
-
-#include <stdio.h>
-#include <string.h>
-#include <FL/Fl.H>
-#include "choose_hill.H"
-
-Hill*
-choose_hill(const Hills *hills, const char *l) {
-	Fl_Search_Chooser *sc = new Fl_Search_Chooser(l?l:"Choose Hill");
-	Hills *h_sort = new Hills(hills);
-	Hill *ret;
-
-	h_sort->sort(Hills::SORT_NAME);
-
-	for (int i=0; i<h_sort->get_num(); i++) {
-		char buf[256];
-
-		Hill *m = h_sort->get(i);
-		if (m->flags & (Hill::DUPLIC | Hill::TRACK_POINT))
-			continue;
-
-		snprintf(buf, sizeof(buf) - 1, "%s (%dm)", m->name, (int) m->height);
-		buf[sizeof(buf) - 1] = '\0';
-		sc->add(buf, m);
-	} 
-
-	delete h_sort;
-
-	sc->show();
-
-	while (sc->shown())
-		Fl::wait();
-
-	ret = (Hill*) sc->data();
-	delete sc;
-
-	return ret;
-}