Remove libtiff dependency + update README.md

tests/TIFFTest.cpp

@@ -1,30 +0,0 @@
-// Copyright (2019-2022) Paul Scherrer Institute
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include <catch2/catch.hpp>
-#include <../common/WriteTIFF.h>
-
-TEST_CASE("TIFFTest","[TIFF]") {
-    std::vector<uint16_t> values(512*1024);
-    REQUIRE_NOTHROW(WriteTIFFToString(values.data(), 1024, 512, 2));
-}
-
-TEST_CASE("TIFFTest_File","[TIFF]") {
-    std::vector<uint16_t> values(512*1024);
-
-    for (auto &i: values)
-        i = 345;
-
-    REQUIRE_NOTHROW(WriteTIFFToFile("test_image.tiff", values.data(), 1024, 512, 2));
-}
-
-TEST_CASE("TIFFTest_File_signed","[TIFF]") {
-    std::vector<int16_t> values(512*1024);
-
-    for (int i = 0; i < values.size(); i++) {
-        values[i] = static_cast<int16_t>(((i % 2 == 0) ? 1 : -1) * i);
-    }
-
-    REQUIRE_NOTHROW(WriteTIFFToFile("test_image_signed.tiff", values.data(), 1024, 512,
-                                    2, true));
-}