chore: enclose everything in namespace matar

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

include/bus.hh

@@ -3,6 +3,7 @@
 #include "memory.hh"
 #include <memory>
 
+namespace matar {
 class Bus {
   public:
     Bus(const Memory& memory);
@@ -19,3 +20,4 @@ class Bus {
   private:
     std::shared_ptr<Memory> memory;
 };
+}

include/cpu/cpu.hh

@@ -1,5 +1,6 @@
 #include "bus.hh"
 
+namespace matar {
 class CpuImpl;
 
 class Cpu {
@@ -17,3 +18,4 @@ class Cpu {
   private:
     std::unique_ptr<CpuImpl> impl;
 };
+}

include/header.hh

@@ -3,6 +3,7 @@
 #include <cstdint>
 #include <string>
 
+namespace matar {
 struct Header {
     static constexpr uint8_t HEADER_SIZE = 192;
 
@@ -44,3 +45,4 @@ struct Header {
     uint32_t multiboot_entrypoint;
     uint8_t slave_id;
 };
+}

include/memory.hh

@@ -7,6 +7,7 @@
 #include <unordered_map>
 #include <vector>
 
+namespace matar {
 class Memory {
   public:
     static constexpr size_t BIOS_SIZE = 1024 * 16;
@@ -63,3 +64,4 @@ class Memory {
     Header header;
     void parse_header();
 };
+}