supersize: Show relocations in section totals

tools/binary_size/libsupersize/testdata/Console.golden

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 Entering interactive Python shell. Quick reference:
 
 SizeInfo: metadata, raw_symbols, section_sizes, symbols
 Symbol: FlagsString, IsBss, IsGeneratedByToolchain, IsGroup, address, aliases, end_address, flags, full_name, generated_source, is_anonymous, name, num_aliases, object_path, padding, pss, pss_without_padding, section, section_name, size, size_without_padding, source_path, template_name
 
 SymbolGroup (extends Symbol): CountUniqueSymbols, Filter, GroupedBy, GroupedByFullName, GroupedByName, GroupedByPath, GroupedBySectionName, Inverted, IterLeafSymbols, IterUniqueSymbols, SetName, Sorted, SortedByAddress, SortedByCount, SortedByName, WhereAddressInRange, WhereFullNameMatches, WhereGeneratedByToolchain, WhereHasAnyAttribution, WhereHasPath, WhereInSection, WhereIsGroup, WhereIsTemplate, WhereMatches, WhereNameMatches, WhereObjectPathMatches, WherePathMatches, WherePssBiggerThan, WhereSizeBiggerThan, WhereSourceIsGenerated, WhereSourcePathMatches, WhereTemplateNameMatches, is_sorted
 
 SymbolDiff (extends SymbolGroup): DiffStatus, IsAdded, IsChanged, IsRemoved, IsUnchanged, WhereNotUnchanged, added_count, changed_count, removed_count, unchanged_count
 
@@ skipping 38 matching lines @@
 Metadata:
     elf_arch=arm
     elf_build_id=WhatAnAmazingBuildId
     elf_file_name=elf
     elf_mtime={redacted}
     git_revision=abc123
     gn_args=var1=true var2="foo"
     map_file_name=../test.map
     tool_prefix=tools/binary_size/libsupersize/testdata/mock_toolchain/
 
-Section Sizes (Total=41.8mb (43785380 bytes)):
+Section Sizes (Total=95.6mb (100233874 bytes)):
+    .ARM.exidx: 1.47mb (1536456 bytes) (1.5%)
     .bss: 1.24mb (1300456 bytes) (not included in totals)
-    .data: 99.4kb (101768 bytes) (0.2%)
-    .data.rel.ro: 1.02mb (1065224 bytes) (2.4%)
-    .data.rel.ro.local: 771kb (790024 bytes) (1.8%)
-    .rodata: 5.65mb (5927652 bytes) (13.5%)
-    .text: 34.2mb (35900712 bytes) (82.0%)
+    .data: 99.4kb (101768 bytes) (0.1%)
+    .rel.dyn: 2.53mb (2655384 bytes) (2.6%)
+    .rodata: 5.65mb (5927652 bytes) (5.9%)
+    .strtab: 33.2mb (34841854 bytes) (34.8%)
+    .symtab: 16.4mb (17166112 bytes) (17.1%)
+    .text: 34.2mb (35900712 bytes) (35.8%)
 
 Showing 45 symbols (42 unique) with total pss: 43785380 bytes
 .text=34.2mb     .rodata=5.65mb     .data*=1.87mb     .bss=512kb      total=41.8mb
 Number of unique paths: 9
 
 Index, Running Total, Section@Address, PSS
 ------------------------------------------------------------
 0)         16 (0.0%)  t@0x28d900   16      base/page_allocator.cc
              _GLOBAL__sub_I_page_allocator.cc
 1)         72 (0.0%)  t@0x28d910   56      base/page_allocator.cc
@@ skipping 76 matching lines @@
 40)  43785380 (100.0%) b@0x0        131072  third_party/fft_fixed.cc
              ff_cos_131072_fixed
 41)  43785380 (100.0%) b@0x0        131072  third_party/fft_float.cc
              ff_cos_65536
 42)  43785380 (100.0%) b@0x2dffda0  28      third_party/icu/ucnv_ext.c
              g_chrome_content_browser_client
 43)  43785380 (100.0%) b@0x2dffe80  200     third_party/icu/ucnv_ext.c
              SaveHistogram::atomic_histogram_pointer
 44)  43785380 (100.0%) b@0x2dffe84  4       third_party/icu/ucnv_ext.c
              g_AnimationFrameTimeHistogram_clazz