Adding installation test.

tests/installation_tests/find/CMakeLists.txt

@@ -0,0 +1,37 @@
+cmake_minimum_required(VERSION 3.15)
+
+project(test_install VERSION 0.1.0 LANGUAGES C)
+
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+find_package(xor_singleheader REQUIRED)
+
+
+
+file(WRITE main.c "
+#include <binaryfusefilter.h>
+#include <xorfilter.h>
+#include <stdlib.h>
+ 
+int main() {
+    uint64_t big_set[3] = {1,2,3};
+    binary_fuse8_t filter;
+    bool is_ok = binary_fuse8_allocate(3, &filter);
+    if(! is_ok ) {
+       // do something (you have run out of memory)
+   }
+   is_ok = binary_fuse8_populate(big_set, 3, &filter);
+   if(! is_ok ) {
+        // do something (you have run out of memory)
+    }
+    binary_fuse8_contain(big_set[0], &filter); // will be true
+    binary_fuse8_contain(32132, &filter); // will be false with high probability
+    binary_fuse8_free(&filter);
+
+    return EXIT_SUCCESS;
+}")
+
+
+
+add_executable(repro main.c)
+target_link_libraries(repro PUBLIC xor_singleheader::xor_singleheader)