Add benchmark files and update documentation

Author: Kobzol

collector/compile-benchmarks/README.md

@@ -36,6 +36,9 @@ They mostly consist of real-world crates.
 - **image-0.24.1**: Basic image processing functions and methods for 
   converting to and from various image formats. Used often in graphics 
   programming.
+- **image-0.25.6**: Basic image processing functions and methods for
+  converting to and from various image formats. Used often in graphics
+  programming.
 - **libc-0.2.124**: An interface to `libc`. Contains many declarations of
   types, constants, and functions, but relatively little normal code. Stresses
   the parser. A very widely-used crate.

collector/compile-benchmarks/REUSE.toml

@@ -135,6 +135,11 @@ path = "image-0.24.1/**"
 SPDX-FileCopyrightText = "The image-rs Developers"
 SPDX-License-Identifier = "MIT"
 
+[[annotations]]
+path = "image-0.25.6/**"
+SPDX-FileCopyrightText = "The image-rs Developers"
+SPDX-License-Identifier = "MIT"
+
 [[annotations]]
 path = "inflate/**"
 SPDX-FileCopyrightText = "inflate contributors"

collector/compile-benchmarks/image-0.25.6/0-println.patch

@@ -0,0 +1,12 @@
+diff --git a/src/dynimage.rs b/src/dynimage.rs
+index 32da8c70..10e46ec2 100644
+--- a/src/dynimage.rs
++++ b/src/dynimage.rs
+@@ -1348,6 +1348,7 @@ pub fn load_from_memory(buffer: &[u8]) -> ImageResult<DynamicImage> {
+ /// [`load`]: fn.load.html
+ #[inline(always)]
+ pub fn load_from_memory_with_format(buf: &[u8], format: ImageFormat) -> ImageResult<DynamicImage> {
++    println!("testing");
+     let b = io::Cursor::new(buf);
+     free_functions::load(b, format)
+ }

collector/compile-benchmarks/image-0.25.6/perf-config.json

@@ -0,0 +1,5 @@
+{
+  "runs": 1,
+  "artifact": "library",
+  "category": "primary"
+}