Replace test option with not building tests by default (#430)

Co-authored-by: Frankie Robertson <frankie@robertson.name>

meson.build

@@ -27,6 +27,4 @@ pkg.generate(
   extra_cflags: magic_enum_args,
 )
 
-if get_option('test')
-    subdir('test')
-endif
+subdir('test')

meson_options.txt

@@ -1,10 +1,3 @@
-option(
-    'test',
-    type : 'boolean',
-    value : true,
-    description : 'Build and run tests'
-)
-
 option(
     'hash',
     type : 'boolean',

test/meson.build

@@ -10,6 +10,7 @@ foreach test_name, test_src : test_files
         test_name.underscorify(),
         test_src,
 
+        build_by_default: false,
         dependencies: [magic_enum_dep, catch2_dep],
     )