Make: Install Sources (#227)

Closes #224 

* Install needed file

This file is needed by usearch
https://github.com/unum-cloud/usearch/blob/e7140e55967a4198f2bbd34987fa7597ebafa649/c/CMakeLists.txt#L5.

* Change the default C version to C23

CMakeLists.txt

@@ -8,7 +8,7 @@ project(
     HOMEPAGE_URL "https://github.com/ashvardanian/simsimd"
 )
 
-set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD 23)
 set(CMAKE_C_STANDARD_REQUIRED YES)
 set(CMAKE_C_EXTENSIONS NO)
 
@@ -117,4 +117,19 @@ if (SIMSIMD_BUILD_SHARED)
     add_library(simsimd_shared SHARED ${SIMSIMD_SOURCES})
     target_include_directories(simsimd_shared PUBLIC "${PROJECT_SOURCE_DIR}/include")
     set_target_properties(simsimd_shared PROPERTIES OUTPUT_NAME simsimd)
+
+    install(
+        TARGETS simsimd_shared
+        ARCHIVE
+        BUNDLE
+        FRAMEWORK
+        LIBRARY
+        OBJECTS
+        PRIVATE_HEADER
+        PUBLIC_HEADER
+        RESOURCE
+        RUNTIME)
 endif ()
+
+install(DIRECTORY ./include/ DESTINATION /usr/include/)
+install(DIRECTORY ./c/ DESTINATION /usr/src/${PROJECT_NAME}/)