Remove find_package generation on test_package of cmake_lib template

On test_package/CMakeLists.txt should not appear any find_package of
transitive dependencies (dependencies of the currently tested package)
Delegate on conan cmake generators to find dependencies.

Also, ordered optional requirements and build_requirement methods on
template

conan/internal/api/new/cmake_lib.py

@@ -32,7 +32,18 @@ def configure(self):
 
     def layout(self):
         cmake_layout(self)
-
+    {% if requires is defined %}
+    def requirements(self):
+        {% for require in requires -%}
+        self.requires("{{ require }}")
+        {% endfor %}
+    {%- endif %}
+    {%- if tool_requires is defined %}
+    def build_requirements(self):
+        {% for require in tool_requires -%}
+        self.tool_requires("{{ require }}")
+        {% endfor %}
+    {%- endif %}
     def generate(self):
         deps = CMakeDeps(self)
         deps.generate()
@@ -51,20 +62,6 @@ def package(self):
     def package_info(self):
         self.cpp_info.libs = ["{{name}}"]
 
-    {% if requires is defined -%}
-    def requirements(self):
-        {% for require in requires -%}
-        self.requires("{{ require }}")
-        {% endfor %}
-    {%- endif %}
-
-    {% if tool_requires is defined -%}
-    def build_requirements(self):
-        {% for require in tool_requires -%}
-        self.tool_requires("{{ require }}")
-        {% endfor %}
-    {%- endif %}
-
 '''
 
 cmake_v2 = """cmake_minimum_required(VERSION 3.15)
@@ -270,12 +267,6 @@ def test(self):
 
 find_package({{name}} CONFIG REQUIRED)
 
-{% if requires is defined -%}
-{% for require in requires -%}
-find_package({{as_name(require)}} CONFIG REQUIRED)
-{% endfor %}
-{%- endif %}
-
 add_executable(example src/example.cpp)
 target_link_libraries(example {{name}}::{{name}})
 """